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  • 1. Aaberg, Jenny B.
    et al.
    Samec, Joseph S. M.
    Baeckvall, Jan-E.
    Mechanistic investigation on the hydrogenation of imines by [p-(Me2CH)C6H4Me]RuH(NH2CHPhCHPhNSO2C6H4-p-CH3). Experimental support for an ionic pathway.2006Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 26, s. 2771-2773Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The need for acidic activation in the stoichiometric hydrogenation of benzyl-[1-phenyl-ethylidene]-amine (6a) or [1-(4-methoxy-phenyl)-ethylidene]-methyl-amine (6b) by Noyori's catalyst [p-(Me2CH)C6H4Me]RuH(NH2CHPhCHPhNSO2C6H4-p-CH3) (2) is inconsistent with the proposed concerted mechanism and supports an ionic mechanism. [on SciFinder(R)]

  • 2.
    Ahlquist, Mårten
    et al.
    KTH, Skolan för bioteknologi (BIO), Teoretisk kemi och biologi.
    Fabrizi, G
    Cacchi, S
    Norrby, Per-Ola
    Technical University of Denmark.
    Palladium(0) alkyne complexes as active species: a DFT investigation2005Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 33, s. 4196-4198Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Alkynes have been found to be excellent ligands for Pd(0); the stability of a range of alkyne-Pd(0) complexes, and their reactivity in oxidative addition, have been investigated by DFT methods.

  • 3.
    Ahlquist, Mårten
    et al.
    California Institute of Technology.
    Periana, Roy A.
    Goddard, William A., III
    C-H activation in strongly acidic media. The co-catalytic effect of the reaction medium2009Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 17, s. 2373-2375Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Quantum mechanical (QM) results are used to establish the role of sulfuric acid solvent in facilitating the reaction between Pt(II)(bpym)Cl(2) (bpym = 2,2'-bipyrimidinyl) and methane; coordination of methane to the platinum catalyst is found to be catalyzed by the acidic medium.

  • 4.
    Ahlsten, Nanna
    et al.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Martin-Matute, Belen
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Ir-catalysed formation of C-F bonds. From allylic alcohols to α-fluoroketones2011Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 47, nr 29, s. 8331-8333Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A novel iridium-catalysed tandem isomerisation/C-F bond formation from allylic alcohols and Selectfluor® to prepare α-fluorinated ketones as single constitutional isomers is reported.

  • 5.
    Andersson, Hans
    et al.
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen.
    Sainte-Luce Banchelin, Thomas
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen.
    Das, Sajal
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen.
    Olsson, Roger
    Institutionen för kemi och molekylärbiologi, Göteborgs universitet, Göteborg, Sverige .
    Almqvist, Fredrik
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen.
    Efficient, mild and completely regioselective synthesis of substituted pyridines2010Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 46, nr 19, s. 3384-3386Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Addition of Grignard reagents to pyridine N-oxides in THF at low temperature (-78 to -20 °C) and treatment with TFAA provides an efficient general procedure for synthesis of substituted pyridines. The method is compatible with a range of functional groups such as esters, halogens and nitriles.

  • 6.
    Antila, Liisa J.
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Fysikalisk kemi.
    Santomauro, Fabio G.
    Hammarström, Leif
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Fysikalisk kemi.
    Fernandes, Daniel L. A.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Fysikalisk kemi.
    Sa, Jacinto
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Fysikalisk kemi.
    Hunting for the elusive shallow traps in TiO2 anatase2015Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 51, nr 54, s. 10914-10916Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Understanding electron mobility on TiO2 is crucial because of its applications in photocatalysis and solar cells. This work shows that shallow traps believed to be involved in electron migration in TiO2 conduction band are formed upon band gap excitation, i.e., are not pre-existing states. The shallow traps in TiO2 results from large polarons and are not restricted to surface.

  • 7.
    Antoni, Per
    et al.
    KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknik.
    Nyström, Daniel
    KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknik.
    Hawker, Craig
    Univ Calif Santa Barbara, Mat Res Lab.
    Hult, Anders
    KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknik.
    Malkoch, Michael
    KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknik.
    A chemoselective approach for the accelerated synthesis of well-defined dendritic architectures2007Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 22, s. 2249-2251Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A chemoselective and layered growth approach has been developed for the synthesis of dendrimers, combining Click chemistry with traditional esterification/etherification reactions, without the need for activation steps and with excellent overall yields.

  • 8.
    Arkhypchuk, Anna I.
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    D'Imperio, Nicolas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    Ott, Sascha
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    Triarylalkenes from the site-selective reductive cross-coupling of benzophenones and aldehydes2019Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 55, nr 43, s. 6030-6033Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    PhP(Li)TMS converts benzophenones to phosphaalkenes which upon activation under oxidizing, basic conditions react with aromatic aldehydes under the formation of triarylalkenes. The one-pot reaction omits transition metals, proceeds at room temperature and precludes the formation of any homo-coupling products. Systematic substrate variations reveal reactivity patterns that are useful for the identification of ketone/aldehyde combinations that can be coupled in yields up to 80%.

  • 9.
    Arrigan, Damien
    et al.
    NMRC, University College, Cork, Ireland.
    Ghita, Mihaela
    University of Salford, UK.
    Beni, Valerio
    NMRC, University College, Cork, Ireland.
    Selective voltammetric detection of dopamine in the presence ofascorbate2004Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 6, s. 732-733Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The selective detection of dopamine in the presence of ascorbateis demonstrated based on the voltammetry of dopamine transferacross the interface between two immiscible electrolyte solutions(ITIES) facilitated by an organic-phase ionophore; ascorbatetransfer does not occur, leading to highly selectivedetection of dopamine in the presence of excess ascorbate.

  • 10.
    Augusto Berrocal, Jose
    et al.
    Eindhoven University of Technology, Netherlands.
    Di Meo, Florent
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Teoretisk kemi. Linköpings universitet, Tekniska fakulteten. University of Limoges, France.
    Garcia-Iglesias, Miguel
    Eindhoven University of Technology, Netherlands.
    Gosens, Ronald P. J.
    Eindhoven University of Technology, Netherlands.
    Meijer, E. W.
    Eindhoven University of Technology, Netherlands.
    Linares, Mathieu
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Palmans, Anja R. A.
    Eindhoven University of Technology, Netherlands.
    Consequences of conformational flexibility in hydrogen-bond-driven self-assembly processes2016Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 52, nr 72, s. 10870-10873Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We report the synthesis and self-assembly of chiral, conformationally flexible C-3-symmetrical trisamides. A strong Cotton effect is observed for the supramolecular polymers in linear alkanes but not in cyclic alkanes. MD simulations suggest 2:1 conformations of the amides within the aggregates in both types of solvents, but a chiral bias in only linear alkanes.

  • 11. Auty, Sam E. R.
    et al.
    Andrén, Oliver
    KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknik, Ytbehandlingsteknik.
    Malkoch, Michael
    KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknik, Ytbehandlingsteknik.
    Rannard, Steven P.
    The first peripherally masked thiol dendrimers: a facile and highly efficient functionalization strategy of polyester dendrimers via one-pot xanthate deprotection/thiol-acrylate Michael addition reactions2014Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 50, nr 50, s. 6574-6577Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Introducing multiple reactive functional groups at the periphery of dendrimer materials presents considerable challenges if the functionality is able to self-react. An efficient and facile approach to introducing masked thiols at the surface of polyester dendrimers is presented. One-pot, deprotection/thiol-acrylate Michael addition from the xanthate-functional dendritic substrates (generation zero to two) has been achieved for the first time, with high efficiency demonstrated using three acrylates of varying chemistry and avoiding disulfide formation.

  • 12.
    Azharuddin, Mohammad
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för klinisk kemi. Linköpings universitet, Medicinska fakulteten.
    Zhu, Geyunjian H.
    Univ Cambridge, England.
    Das, Debapratim
    Indian Inst Technol Guwahati, India.
    Ozgur, Erdogan
    Hacettepe Univ, Turkey.
    Uzun, Lokman
    Hacettepe Univ, Turkey.
    Turner, Anthony P. F.
    Cranfield Univ, England.
    Patra, Hirak Kumar
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Univ Cambridge, England.
    A repertoire of biomedical applications of noble metal nanoparticles2019Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 55, nr 49, s. 6964-6996Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Noble metals comprise any of several metallic chemical elements that are outstandingly resistant to corrosion and oxidation, even at elevated temperatures. This group is not strictly defined, but the tentative list includes ruthenium, rhodium, palladium, silver, osmium, iridium, platinum and gold, in order of atomic number. The emerging properties of noble metal nanoparticles are attracting huge interest from the translational scientific community and have led to an unprecedented expansion of research and exploration of applications in biotechnology and biomedicine. Noble metal nanomaterials can be synthesised both by top-down and bottom up approaches, as well as via organism-assisted routes, and subsequently modified appropriately for the field of use. Nanoscale analogues of gold, silver, platinum, and palladium in particular, have gained primary importance owing to their excellent intrinsic properties and diversity of applications; they offer unique functional attributes, which are quite unlike the bulk material. Modulation of noble metal nanoparticles in terms of size, shape and surface functionalisation has endowed them with unusual capabilities and manipulation at the chemical level, which can lead to changes in their electrical, chemical, optical, spectral and other intrinsic properties. Such flexibility in multi-functionalisation delivers Ockhams razor to applied biomedical science. In this feature article, we highlight recent advances in the adaptation of noble metal nanomaterials and their biomedical applications in therapeutics, diagnostics and sensing.

    Fulltekst tilgjengelig fra 2020-05-21 00:01
  • 13. Bai, Lichen
    et al.
    Li, Fei
    Wang, Yong
    Li, Hua
    Jiang, Xiaojuan
    Sun, Licheng
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi. Dalian University of Technology (DUT), China.
    Visible-light-driven selective oxidation of benzyl alcohol and thioanisole by molecular ruthenium catalyst modified hematite2016Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 52, nr 62, s. 9711-9714Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Molecular ruthenium catalysts were found to selectively catalyze the oxidation of thioanisole to sulfoxide with a yield up to 100% in the presence of visible light and sacrificial reagents when they were anchored onto hematite powder. The composite photocatalysts also showed about 5 times higher efficiencies in benzyl alcohol oxidation than the system composed of dispersed molecular catalysts and hematite particles in aqueous solution. A photoelectrochemical cell based on a molecular catalyst modified hematite photoanode was further fabricated, which exhibited high activity towards the oxidation of organic substrates.

  • 14.
    Bermejo Gómez, Antonio
    et al.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Cortes, Miguel Angel
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Lübcke, Marvin
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi. Karolinska Institutet, Sweden.
    Johansson, Magnus J.
    Halldin, Christer
    Szabó, Kálmán J.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi. Karolinska Insitutet, Sweden.
    Schou, Magnus
    Efficient DBU accelerated synthesis of F-18-labelled trifluoroacetamides2016Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 52, nr 97, s. 13963-13966Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Nucleophilic F-18-fluorination of bromodifluoromethyl derivatives was performed using [F-18] Bu4NF in the presence of DBU(1,8-diazabicyclo[5.4.0]undec-7-ene). This novel procedure provided a diverse set of [F-18] trifluoroacetamides in good to excellent radiochemical conversions. A mechanism where DBU acts as organomediator in this transformation is proposed.

  • 15.
    Bermejo-Velasco, Daniel
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Polymerkemi.
    Nawale, Ganesh N.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Polymerkemi.
    Oommen, Oommen P.
    Bioengineering and Nanomedicine Lab, Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, and BioMediTech Institute, 33720, Tampere, Finland.
    Hilborn, Jöns
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Polymerkemi.
    Varghese, Oommen P.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Polymerkemi.
    Thiazolidine chemistry revisited: a fast, efficient and stable click-type reaction at physiological pH2018Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 54, nr 88, s. 12507-12510Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We describe the fast reaction kinetics between 1,2-aminothiols and aldehydes. Under physiological conditions such a click-type reaction afforded a thiazolidine product that remains stable and did not require any catalyst. This type of bioorthogonal reaction offers enormous potential for the coupling of biomolecules in an efficient and biocompatible manner.

  • 16.
    Beyler, Maryline
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap.
    Ezzaher, Salah
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap.
    Karnahl, Michael
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap, Molekylär biomimetik.
    Santoni, Marie-Pierre
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap, Molekylär biomimetik.
    Lomoth, Reiner
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap, Kemisk fysik.
    Ott, Sascha
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap, Molekylär biomimetik.
    Pentacoordinate iron complexes as functional models of the distal iron in [FeFe] hydrogenases2011Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 47, nr 42, s. 11662-11664Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Mononuclear pentacoordinate iron complexes with a free coordination site were prepared as mimics of the distal Fe (Fe(d)) in the active site of [FeFe] hydrogenases. The complexes catalyze the electrochemical reduction of protons at mild overpotential.

  • 17.
    Bhunia, Asamanjoy
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik. Natl Inst Technol Puducherry, Dept Chem, Karaikal 609609, India.
    Johnson, Ben A.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    Czapla-Masztafiak, Joanna
    Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland.
    Sá, Jacinto
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Fysikalisk kemi. Polish Acad Sci, Inst Phys Chem, Ul Kasprzaka 44-52, PL-01224 Warsaw, Poland.
    Ott, Sascha
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    Formal water oxidation turnover frequencies from MIL-101(Cr) anchored Ru(bda) depend on oxidant concentration2018Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 54, s. 7770-7773Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The molecular water oxidation catalyst [Ru(bda)(L)(2)] has been incorporated into pyridine-decorated MIL-101(Cr) metal-organic frameworks. The resulting MIL-101@Ru materials exhibit turnover frequencies (TOFs) up to ten times higher compared to the homogenous reference. An unusual dependence of the formal TOFs on oxidant concentration is observed that ultimately arises from differing amounts of catalysts in the MOF crystals being active.

  • 18.
    Bielawski, Marcin
    et al.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Olofsson, Berit
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    High-Yielding One-Pot Synthesis of Diaryliodonium Triflates from Arenes and Iodine or Aryl Iodides2007Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 24, s. 2521-2523Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Unsymmetric and symmetric diaryliodonium triflates are synthesized from both electron-deficient and electron-rich substrates in a fast, high yielding, and operationally simple protocol employing arenes and aryl iodides or iodine.

  • 19.
    Biswas, Srijit
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Syntetisk organisk kemi.
    Samec, Joseph
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Syntetisk organisk kemi.
    A Gold(I)-Catalyzed Route to α-Sulfenylated Carbonyl Compounds from Propargylic Alcohols and Aryl Thiols2012Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 48, nr 52, s. 6586-6588Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A one-step atom efficient gold(I)-catalyzed route to α-sulfenylated ketones and aldehydes from propargylic alcohols and aryl thiols is described.

  • 20.
    Borg, Tessie
    et al.
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Danielsson, Jakob
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Somfai, Peter
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Mukaiyama aldol addition to α-chloro-substituted aldehydes. Origin of the unexpected syn selectivity.2010Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 46, nr 8, s. 1281-1283Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The addition of sterically demanding enolsilanes to alpha-chloro aldehydes results unexpectedly in preferential formation of the anti-PFA product (1,2-syn), while the addition of the corresponding boron enolate furnishes the expected polar Felkin-Anh product (1,2-anti). A stereoinduction model explaining these observations is proposed.

  • 21.
    Boström, Hanna
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi. Univ Oxford, Inorgan Chem Lab, Dept Chem, South Parks Rd, Oxford OX1 3QR, England.
    Smith, Ronald I.
    Rutherford Appleton Lab, ISIS Facil, Harwell Campus, Didcot OX11 0QX, Oxon, England.
    Structure and thermal expansion of the distorted Prussian blue analogue RbCuCo(CN)(6)2019Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 55, nr 69, s. 10230-10233Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The structure and thermal expansion of the Prussian blue analogue RbCuCo(CN)(6) has been determined via neutron and X-ray powder diffraction. The system crystallises in Cccm and harbours three coexisting distortions relative to the parent Fm3m structure, which leads to anisotropic thermal expansion with a near-zero component in one direction. The difficulties associated with determining octahedral tilt systems in Prussian blue analogues and related double molecular perovskites are discussed.

  • 22. Bratt, Emma
    et al.
    Suárez-Pantiga, Samuel
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Johansson, Magnus J.
    Mendoza, Abraham
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Mechanism and regioselectivity of the anionic oxidative rearrangement of 1,3-diketones towards all-carbon quaternary carboxylates2019Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 55, nr 60, s. 8844-8847Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The oxidative rearrangement of 1,3-diketones is an underexplored alternative to enolate chemistry in the synthesis of all-carbon quaternary carboxylates. The mechanistic investigation of this reaction has resulted in a mild base mediated protocol, whose regioselectivity has been studied in challenging acyclic substrates.

  • 23. Brice, Heloise
    et al.
    Gill, Duncan M.
    Goldie, Laura
    Keegan, Philip S.
    Kerr, William J.
    Svensson, Per H.
    KTH, Skolan för kemivetenskap (CHE), Kemi, Oorganisk kemi.
    Stereocontrolled access to optically-enriched oxabispidines2012Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 48, nr 40, s. 4836-4838Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A range of chiral, optically-enriched bicyclic oxabispidines were prepared from (S)-(-)-2,3-epoxypropylphthalimide using an efficient sequence featuring a stereocontrolled intramolecular Mannich reaction as the key transformation.

  • 24.
    Butorin, Sergei. M.
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Molekyl- och kondenserade materiens fysik.
    Kvashnina, Kristina O.
    European Synchrotron, CS40220, F-38043 Grenoble 9, France.;HZDR, Inst Resource Ecol, POB 510119, D-01314 Dresden, Germany..
    Prieur, Damien
    European Commiss, Inst Transuranium Elements, Joint Res Ctr, POB 2340, D-76125 Karlsruhe, Germany..
    Rivenet, Murielle
    Univ Lille, CNRS, Cent Lille,ENSL, Univ Artois,UMR 8181,UCCS,Unite Catalyse & Chim S, F-59000 Lille, France..
    Martin, Philippe M.
    CEA, DTEC SECA LCC, DEN, CEA Marcoule, F-30207 Bagnols Sur Ceze, France..
    Characteristics of chemical bonding of pentavalent uranium in La-doped UO22017Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 53, nr 1, s. 115-118Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The effect of La doping on the electronic structure of U in UO2 was studied using an advanced technique, namely, X-ray absorption spectroscopy (XAS) in the high-energy-resolution fluorescence-detection (HERFD) mode, at the U 3d(3/2) (M-4) edge. Thanks to a significant reduction of the core-hole lifetime broadening and distinct chemical shifts of the HERFD-XAS lines, the U(v) formation as a result of La doping was identified. The isolated contribution of U(v) in the M-4 HERFD-XAS spectrum reveals the so-called charge-transfer satellites due to the U 5f-O 2p hybridization. The analysis of the experimental data within the framework of the Anderson impurity model (AIM) indicates a significant change in the characteristics and degree of covalency for the chemical bonding in the U(v) subsystem of UO2 as compared to undoped UO2, which is a Mott-Hubbard system. The results are also supported by AIM calculations of X-ray photoelectron and optical absorption data.

  • 25.
    Cao, Shunsheng
    et al.
    Jiangsu University, Peoples R China .
    Chen, Juanrong
    Cranfield University, England .
    Ge, Yi
    Cranfield University, England .
    Fang, Long
    Jiangsu University, Peoples R China .
    Zhang, Ying
    Jiangsu University, Peoples R China .
    Turner, Anthony
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Biosensorer och bioelektronik. Linköpings universitet, Tekniska högskolan.
    A self-switchable Ag nanoreactor exhibiting outstanding catalytic properties2014Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 50, nr 1, s. 118-120Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A highly efficient nanoreactor that contains silver nanoparticles in hollow silica spheres and an interpolymer network as a gate-keeper has been developed following a facile procedure. The fast "signal-triggered switch of the smart network results in a high reactivity and a high response rate, yielding improved potential for many practical applications.

  • 26. Capece, Sabrina
    et al.
    Chiessi, Ester
    Cavalli, Roberta
    Giustetto, Pierangela
    Grishenkov, Dmitry
    KTH, Skolan för teknik och hälsa (STH), Medicinsk teknik, Medicinsk avbildning.
    Paradossi, Gaio
    A general strategy for obtaining biodegradable polymer shelled microbubbles as theranostic devices2013Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 49, nr 51, s. 5763-5765Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Fabrication of multifunctional ultrasound contrast agents (UCAs) has been recently addressed by several research groups. A versatile strategy for the synthesis of UCA precursors in the form of biodegradable vesicles with a biocompatible crosslinked polymer shell is described. Upon ultrasound irradiation, acoustic droplet vaporization transforms such particles into microbubbles behaving as UCAs. This proof of concept entails the features of a potential theranostic microdevice.

  • 27.
    Caraballo, Remi
    et al.
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Rahm, Martin
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Vongvilai, Pornrapee
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Brinck, Tore
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Ramström, Olof
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Phosphine-catalyzed disulfide metathesis2008Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 48, s. 6603-6605Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The reaction between disulfides and phosphines generates a reversible disulfide metathesis process.

  • 28.
    Caraballo, Rémi
    et al.
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Sakulsombat, Morakot
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Ramström, Olof
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Phosphine-Mediated Disulfide Metathesis in Aqueous Media2010Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 46, nr 44, s. 8469-8471Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Dynamic carbohydrate systems have been efficiently generated through phosphine-mediated disulfide metathesis in aqueous media. The protein compatibility and binding features of the dynamic systems were demonstrated in situ using H-1 STD NMR.

  • 29.
    Carlsson, Anna-Carin C.
    et al.
    Department of Chemistry and the Swedish NMR Centre, University of Gothenburg, Sweden.
    Grafenstein, Jurgen
    Department of Chemistry and the Swedish NMR Centre, University of Gothenburg, Sweden.
    Laurila, Jesse L.
    Department of Chemistry and the Swedish NMR Centre, University of Gothenburg, Sweden.
    Bergquist, Jonas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Analytisk kemi.
    Erdelyi, Mate
    Department of Chemistry and the Swedish NMR Centre, University of Gothenburg, Sweden.
    Symmetry of [N-X-N]+ halogen bonds in solution2012Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 48, nr 10, s. 1458-1460Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The first investigation of halogen bond symmetry is presented. In contrast to related hydrogen bonds, the iodous halogen bond is symmetric in solution and in the crystal. The bromous analogue is symmetric in solution, but shows asymmetry in the solid state. NMR results are in agreement with DFT predictions.

  • 30.
    Carson, Fabian
    et al.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
    Martínez-Castro, Elisa
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Marcos, Rocio
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    González Miera, Greco
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Jansson, Kjell
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
    Zou, Xiaodong
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
    Martin-Matute, Belén
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Effect of the functionalisation route on a Zr-MOF with an Ir-NHC complex for catalysis2015Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 51, nr 54, s. 10864-10867Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A new iridium N-heterocyclic carbene (NHC) metallolinker has been synthesised and introduced into a metal-organic framework (MOF), for the first time, via two different routes: direct synthesis and postsynthetic exchange (PSE). The two materials were compared in terms of the Ir loading and distribution using X-ray energy dispersive spectroscopy (EDS), the local Ir structure using X-ray absorption spectroscopy (XAS) and the catalytic activity. The materials showed good activity and recyclability as catalysts for the isomerisation of an allylic alcohol.

  • 31.
    Casellas, Nicolas M.
    et al.
    UAM, Spain; IMDEA Nanociencia, Spain.
    Urbanaviciute, Indre
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Komplexa material och system. Linköpings universitet, Tekniska fakulteten.
    Cornelissen, Tim
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Komplexa material och system. Linköpings universitet, Tekniska fakulteten.
    Berrocal, Jose Augusto
    Eindhoven Univ Technol, Netherlands.
    Torres, Tomas
    IMDEA Nanociencia, Spain; UAM, Spain.
    Kemerink, Martijn
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Komplexa material och system. Linköpings universitet, Tekniska fakulteten.
    Garcia-Iglesias, Miguel
    UAM, Spain; IMDEA Nanociencia, Spain.
    Resistive switching in an organic supramolecular semiconducting ferroelectric2019Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 55, nr 60, s. 8828-8831Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The combination of switchable dipolar side groups and the semiconducting core of the newly synthetized C-3-symmetric benzotrithiophene molecule (BTTTA) leads to an ordered columnar material showing continuous tunability from injection- to bulk-limited conductivity modulation.

  • 32. Chaignon, Frederique
    et al.
    Falkenström, Magnus
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap, Kemisk fysik.
    Karlsson, Susanne
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap, Kemisk fysik.
    Blart, Errol
    Odobel, Fabrice
    Hammarström, Leif
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för fotokemi och molekylärvetenskap, Kemisk fysik.
    Very large acceleration of the photoinduced electron transfer in a Ru(bpy) 3-naphthalene bisimide dyad bridged on the naphthyl core2007Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 1, s. 64-66Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    By linking a naphthalenebisimide (NBI) unit to [Ru(bpy)3] 2+ on the naphthyl core the rate of photoinduced Ru-to-NBI electron transfer was 1000-fold increased compared to the case with a conventional linking on the nitrogen.

  • 33. Chen, Bin
    et al.
    Ding, Yubin
    Li, Xin
    KTH, Skolan för bioteknologi (BIO), Teoretisk kemi och biologi.
    Zhu, Weihong
    Hill, Jonathan P.
    Ariga, Katsuhiko
    Xie, Yongshu
    Steric hindrance-enforced distortion as a general strategy for the design of fluorescence "turn-on" cyanide probes2013Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 49, nr 86, s. 10136-10138Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    For the rational design of fluorescence "turn-on" cyanide probes, a general strategy is developed by introducing a dicyanovinyl group at the sterically demanding position of a large pi framework.

  • 34. Chen, H.
    et al.
    Gao, Y.
    Ye, L.
    Yao, Y.
    Chen, X.
    Wei, Y.
    Sun, Licheng
    KTH, Skolan för kemivetenskap (CHE), Centra, Molekylär elektronik, CMD. KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemi.
    A Cu2Se-Cu2O film electrodeposited on titanium foil as a highly active and stable electrocatalyst for the oxygen evolution reaction2018Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 54, nr 39, s. 4979-4982Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Many nonprecious metal-selenide-based materials have been reported as electrocatalysts with high activity for the oxygen evolution reaction (OER). Herein, a hybrid catalyst film composed of Cu2Se and Cu2O nanoparticles directly grown on Ti foil (Cu2Se-Cu2O/TF) was prepared through a simple and fast cathodic electrodeposition method. Surprisingly, this electrode required a relatively low overpotential of 465 mV to achieve a catalytic current density of 10 mA cm-2 for the OER in 0.2 M carbonate buffer (pH = 11.0). Furthermore, a long-term constant current electrolysis test confirmed the high durability of the Cu2Se-Cu2O/TF anode at a current density of 10 mA cm-2 over 20 h. The XRD, TEM and XPS analysis of the sample after the OER indicated that a CuO protective layer formed on the surface of the Cu2Se-Cu2O catalyst, which effectively suppressed further oxidation of the Cu2Se-Cu2O catalyst during the OER and resulted in sustained catalytic oxidation of water.

  • 35.
    Chen, Yun
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Fysikalisk kemi.
    Chen, Hong
    Tian, Haining
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Fysikalisk kemi.
    Immobilization of a cobalt catalyst on fullerene in molecular devices for water reduction2015Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 51, nr 57, s. 11508-11511Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A cobalt-based molecular catalyst was successfully grafted to a fullerene derivative via 'click' chemistry on an electrode for both electro-catalytic and light driven water reduction. Using an organic photovoltaic electrode immobilized with a cobalt catalyst as the photocathode, the photoelectrochemical cell displayed a stable photocurrent.

  • 36. Chen, Yun
    et al.
    Chen, Hong
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
    Tian, Haining
    Immobilization of a cobalt catalyst on fullerene in molecular devices for water reduction2015Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 51, nr 57, s. 11508-11511Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A cobalt-based molecular catalyst was successfully grafted to a fullerene derivative via 'click' chemistry on an electrode for both electro-catalytic and light driven water reduction. Using an organic photovoltaic electrode immobilized with a cobalt catalyst as the photocathode, the photoelectrochemical cell displayed a stable photocurrent.

  • 37. Chiotellis, Aristeidis
    et al.
    Sladojevich, Filippo
    Mu, Linjing
    Müller Herde, Adrienne
    Valverde, Ibai E
    Tolmachev, Vladimir
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Schibli, Roger
    Ametamey, Simon M
    Mindt, Thomas L
    Novel chemoselective (18)F-radiolabeling of thiol-containing biomolecules under mild aqueous conditions2016Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 52, nr 36, s. 6083-6086Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We report a novel prosthetic group based on a heterocyclic methylsulfone derivative for the rapid, stable, and chemoselective (18)F-labeling of thiol-containing (bio)molecules under mild aqueous reaction conditions. Compared to established maleimide approaches, the new methodology displays some clear advantages for imaging probe development.

  • 38. Coll, Mercedes
    et al.
    Pàmies, Oscar
    Adolfsson, Hans
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Diéguez, Montserrat
    Carbohydrate-based pseudo-dipeptides: new ligands for the highly enantioselective Ru-catalyzed transfer hydrogenation reaction2011Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 47, nr 44, s. 12188-12190Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Ruthenium-complexes of novel carbohydrate based pseudo-dipeptide ligands effectively and selectively catalyze the reduction of a broad range of aryl–alkyl ketones under ATH conditions. Excellent enantioselectivities (>99% ee) are obtained using aminosugars as the sole source of chirality.

  • 39.
    Concina, Isabella
    et al.
    CNR IDASC SENSOR Lab.
    Frison, Enrico
    Dipartimento di Scienze Chimiche, Università di Catania.
    Braga, Antonio
    CNR IDASC SENSOR Lab.
    Silvestrini, Simone
    Dipartimento di Scienze Chimiche, Università di Catania.
    Maggini, Michele
    Dipartimento di Scienze Chimiche, Università di Catania.
    Sberveglieri, Giorgio
    CNR IDASC SENSOR Lab.
    Vomiero, Alberto
    SENSOR Lab, Department of Chemistry and Physics, Brescia University and CNR-IDASC.
    Carofiglio, Tommaso
    Dipartimento di Scienze Chimiche, Università di Catania.
    On-line monitoring and active control of dye uptake in dye-sensitised solar cells2011Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 47, nr 42, s. 11656-11658Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Real-time monitoring of dye loading (N3 and N719) under continuous flow conditions on TiO2 photoanodes for dye-sensitized solar cells has been applied to quantitatively investigate dye uptake kinetics, demonstrating that static impregnation provides in all cases higher dye loading and, as a consequence, better working devices. © 2011 The Royal Society of Chemistry.

  • 40.
    Cong, Jiayan
    et al.
    Dalian Univ Technol, Dalian, Peoples R China.
    Yang, Xichuan
    Dalian Univ Technol, Dalian, Peoples R China.
    Liu, Jing
    Dalian Univ Technol, Dalian, Peoples R China.
    Zhao, Jinxia
    Dalian Univ Technol, Dalian, Peoples R China.
    Hao, Yan
    Dalian Univ Technol, Dalian, Peoples R China.
    Wang, Yu
    Dalian Univ Technol, Dalian, Peoples R China.
    Sun, Licheng
    KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
    Nitro group as a new anchoring group for organic dyes in dye-sensitized solar cells2012Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 48, nr 53, s. 6663-6665Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    An organic dye JY1 bearing a nitro group was designed, synthesized and applied in DSCs. An unusual colour change was observed when the voltage applied to the device was reversed which was accompanied by a five-fold increase in the cell efficiency. We propose that applying a bias enabled the attachment of nitro groups to the TiO2 surface.

  • 41.
    Conway, Louis P.
    et al.
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för läkemedelskemi, Kemisk biologi för biomarkörer.
    Garg, Neeraj
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för läkemedelskemi, Kemisk biologi för biomarkörer. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Lin, Weifeng
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för läkemedelskemi, Kemisk biologi för biomarkörer. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Vujasinovic, Miroslav
    Department for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden.
    Löhr, J. -Matthias
    Karolinska Univ Hosp, Dept Digest Dis, Stockholm, Sweden;Karolinska Inst, Dept Clin Sci Intervent & Technol CLINTEC, Stockholm, Sweden.
    Globisch, Daniel
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för läkemedelskemi, Kemisk biologi för biomarkörer. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Chemoselective probe for detailed analysis of ketones and aldehydes produced by gut microbiota in human samples2019Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 55, nr 62, s. 9080-9083Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    New strategies are required for the discovery of unknown bioactive molecules produced by gut microbiota in the human host. Herein, we utilize a chemoselective probe immobilized to magnetic beads for analysis of carbonyls in human fecal samples. We identified 112 metabolites due to femtomole analysis and an increased mass spectrometric sensitivity by up to six orders of magnitude.

  • 42.
    Cortes, Miguel Angel
    et al.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Nordeman, Patrik
    Bermejo Gómez, Antonio
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi. AstraZeneca PET Centre at Karolinska Institutet, Sweden.
    Meyer, Denise N.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Antoni, Gunnar
    Schou, Magnus
    Szabó, Kálmán J.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    [F-18]fluoro-benziodoxole: a no-carrier-added electrophilic fluorinating reagent. Rapid, simple radiosynthesis, purification and application for fluorine-18 labelling2018Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 54, nr 34, s. 4286-4289Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Operationally simple radiosynthesis and purification of [F-18]fluoro-benziodoxole was developed starting from a cyclotron produced [F-18]F- precursor, [F-18]TBAF, and tosyl-benziodoxole. The synthetic utility of [F-18]fluoro-benziodoxole was demonstrated by electrophilic fluorocyclization of o-styrilamides proceeding with high RCC (typically 50-90%) and high molar activity (up to 396 GBq mol(-1)).

  • 43. Crespo, Gaston A.
    et al.
    Mistlberger, Guenter
    Bakker, Eric
    Electrogenerated chemiluminescence triggered by electroseparation of Ru(bpy)(3)(2+) across a supported liquid membrane2011Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 47, nr 42, s. 11644-11646Artikkel i tidsskrift (Fagfellevurdert)
  • 44. Cuartero, Maria
    et al.
    Bishop, Josiah
    Walker, Raymart
    Acres, Robert G
    Bakker, Eric
    De Marco, Roland
    Crespo, Gaston A.
    University of Geneva, Quai Ernest-Ansermet 30, Geneva, CH-1211, Switzerland.
    Evidence of double layer/capacitive charging in carbon nanomaterial-based solid contact polymeric ion-selective electrodes2016Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 52, nr 62, s. 9703-6Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper presents the first direct spectroscopic evidence for double layer or capacitive charging of carbon nanomaterial-based solid contacts in all-solid-state polymeric ion-selective electrodes (ISEs). Here, we used synchrotron radiation-X-ray photoelectron spectroscopy (SR-XPS) and SR valence band (VB) spectroscopy in the elucidation of the charging mechanism of the SCs.

  • 45.
    Cumpstey, Ian
    et al.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Agrawal, Santosh
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Borbas, K. Eszter
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Martín-Matute, Belén
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Iridium-catalysed condensation of alcohols and amines as a method for aminosugar synthesis2011Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 47, nr 27, s. 7827-7829Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Primary carbohydrate amines at primary and secondary carbons are alkylated by alcohols in the presence of [Cp*IrCl2]2. When primary carbohydrate alcohols are used as the coupling partners and in the presence of Cs2CO3, amine-linked pseudodisaccharides are obtained. Secondary carbohydrate alcohols are unaffected under these conditions, which allows regioselective reactions.

  • 46. Czyzewski, Michal
    et al.
    Sellars, Jonathan D.
    Guliashvili, Tamaz
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Fysikalisk-organisk kemi.
    Tibbelin, Julius
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Fysikalisk-organisk kemi.
    Johnstone, Lisa
    Bower, Justin
    Box, Matthew
    Davies, Robert D. M.
    Ottosson, Henrik
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Fysikalisk-organisk kemi.
    Steel, Patrick G.
    The first intramolecular silene Diels-Alder reactions2014Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 50, nr 22, s. 2919-2921Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The synthesis of silaheterocycles through the first examples of an intramolecular silene Diels-Alder reaction is described.

  • 47.
    Córdova, Armando
    et al.
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Engqvist, Magnus
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    Ibrahem, Ismail
    Casas, Jésus
    Sundén, Henrik
    Plausible origins of homochirality in the amino acid catalyzed neogenesis of carbohydrates2005Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 2005, s. 2047-2049Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The intrinsic ability of amino acids to catalyze the asymmetric formation of carbohydrates, which enzymes have mediated for millions of years, with significant amplification of enantiomeric excess suggests a plausible ancient catalytic process for the evolution of homochirality.

  • 48. da Silva, DA
    et al.
    Friedlein, Rainer
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi, Ytors Fysik och Kemi.
    Coropceanu, V
    Ohrwall, G
    Osikowicz, Wojciech
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi, Ytors Fysik och Kemi.
    Suess, C
    Sorensen, SL
    Svensson, S
    Salaneck, William R
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi, Ytors Fysik och Kemi.
    Bredas, JL
    Vibronic coupling in the ground and excited states of the naphthalene cation2004Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, nr 15, s. 1702-1703Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The hole - vibrational coupling in naphthalene is studied using high-resolution gas-phase photoelectron spectroscopy and density functional theory calculations (DFT), and a remarkable increase of the coupling with low-frequency vibrations is observed in the excited states.

  • 49.
    Dabkowska, A. P.
    et al.
    Lund Univ, Div Phys Chem, POB 124, SE-22100 Lund, Sweden..
    Hirst, C.
    Lund Univ, Div Phys Chem, POB 124, SE-22100 Lund, Sweden..
    Valldeperas, M.
    Lund Univ, Div Phys Chem, POB 124, SE-22100 Lund, Sweden..
    Clifton, L. A.
    Rutherford Appleton Lab, Sci & Technol Facil Council, ISIS Pulsed Neutron & Muon Source, Harwell Oxford Campus, Didcot OX11 OQX, Oxon, England..
    Montis, C.
    Univ Florence, Dept Chem, I-50121 Florence, Italy.;CSGI, Florence, Italy..
    Nojd, S.
    Lund Univ, Div Phys Chem, POB 124, SE-22100 Lund, Sweden..
    Gentile, L.
    Lund Univ, Div Phys Chem, POB 124, SE-22100 Lund, Sweden..
    Wang, M.
    Lund Univ, Div Phys Chem, POB 124, SE-22100 Lund, Sweden..
    Pálsson, Gunnar Karl
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Materialfysik. Inst Laue Langevin, Grenoble, France.
    Lages, S.
    Lund Univ, Max IV Lab, POB 118, SE-22100 Lund, Sweden.;Friedrich Alexander Univ, Crystallog & Struct Phys, Dept Phys, Erlangen, Germany..
    Berti, D.
    Univ Florence, Dept Chem, I-50121 Florence, Italy.;CSGI, Florence, Italy..
    Barauskas, J.
    Malmo Univ, Fac Hlth & Soc, Biomed Sci, SE-20506 Malmo, Sweden.;Camurus AB, Ideon Sci Pk,Gamma Bldg,Solvegatan 41, SE-22379 Lund, Sweden..
    Nylander, T.
    Lund Univ, Div Phys Chem, POB 124, SE-22100 Lund, Sweden..
    Temperature responsive lipid liquid crystal layers with embedded nanogels2017Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 53, nr 8, s. 1417-1420Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Polymer nanogels are embedded within layers consisting of a nonlamellar liquid crystalline lipid phase to act as thermoresponsive controllers of layer compactness and hydration. As the nanogels change from the swollen to the collapsed state via a temperature trigger, they enable on-demand release of water from the mixed polymer-lipid layer while the lipid matrix remains intact. Combining stimuli-responsive polymers with responsive lipid-based mesophase systems opens up new routes in biomedical applications such as functional biomaterials, bioanalysis and drug delivery.

  • 50.
    Das, Biswanath
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    Orthaber, Andreas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    Ott, Sascha
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    Thapper, Anders
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Molekylär biomimetik.
    Water oxidation catalysed by a mononuclear CoII polypyridine complex; possible reaction intermediates and the role of the chloride ligand2015Inngår i: Chemical Communications, ISSN 1359-7345, E-ISSN 1364-548X, Vol. 51, nr 66, s. 13074-13077Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A mononuclear cobalt(II) complex as a homogeneous molecular catalyst for photochemically, electrochemically and chemically induced oxygen evolution reactions is presented. Experimental evidence points towards the presence of a chloride ligand at the cobalt centre throughout the catalytic cycle, and the temporary detachment of a pyridine ligand to open a coordination site for substrate binding.

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