Resultados globales: 7 registros encontrados en 0.03 segundos.
Artículos, Encontrados 7 registros
Artículos Encontrados 7 registros  
1.
7 p, 902.9 KB Lanthanum-Catalyzed Enantioselective Trifluoromethylation by Using an Electrophilic Hypervalent Iodine Reagent / Granados Toda, Albert (Universitat Autònoma de Barcelona. Departament de Química) ; Rivilla, I (Universidad del País Vasco. Departamento de Química Orgánica) ; Cossío, Fernando P. (Centro de Innovación en Química Avanzada (ORFEO-CINQA)) ; Vallribera Massó, Adelina (Universitat Autònoma de Barcelona. Departament de Química)
A highly enantioselective catalytic method for the synthesis of quaternary α-trifluoromethyl derivatives of 3-oxo esters is described. The reaction uses lanthanum(III) triflate and chiral PyBOX-type C2-symmetric ligands to generate intermediate LaIII complexes that incorporate an enolate moiety of the starting 3-oxo ester and the trifluoromethylation transfer reagent. [...]
2019 - 10.1002/chem.201900598
Chemistry, Vol. 25, Issue 35 (June 2019) , p. 8214-8218  
2.
26 p, 1.4 MB Drastic effect of the peptide sequence on the copper-binding properties of tripeptides and the electrochemical behaviour of their copper(II) complexes / Mena Fernández, Silvia (Universitat Autònoma de Barcelona. Departament de Química) ; Mirats Arce, Andrea (Universitat Autònoma de Barcelona. Departament de Química) ; Caballero, Ana B (Universitat Autònoma de Barcelona. Departament de Química) ; Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ; Barrios, Leoní A. (Universitat de Barcelona. Departament de Química Inorgànica i Orgànica) ; Teat, Simon J. (Lawrence Berkeley National Laboratory. Advanced Light Source) ; Rodríguez Santiago, Luis (Universitat Autònoma de Barcelona. Departament de Química) ; Sodupe Roure, Mariona (Universitat Autònoma de Barcelona. Departament de Química) ; Gámez Enamorado, Patrick (Universitat de Barcelona. Departament de Química Inorgànica i Orgànica)
The binding and electrochemical properties of the complexes CuII-HAH, CuII-HWH, CuII-Ac-HWH, CuII-HHW, and CuII-WHH have been studied by using NMR and UV/Vis spectroscopies, CV, and density functional calculations. [...]
2018 - 10.1002/chem.201704623
Chemistry, Vol. 24, issue 20 (April 2018) , p. 5153-5162  
3.
7 p, 591.2 KB A Silylene stabilized by a σ-donating Ni(0) fragment / Frutos, María (Centre National de la Recherche Scientifique. Université de Toulouse. Laboratoire Hétérochimie Fondamentale et Appliquée) ; Parvin, Nasrina (Centre National de la Recherche Scientifique. Université de Toulouse. Laboratoire Hétérochimie Fondamentale et Appliquée) ; Baceiredo, Antoine (Centre National de la Recherche Scientifique. Université de Toulouse. Laboratoire Hétérochimie Fondamentale et Appliquée) ; Madec, David (Centre National de la Recherche Scientifique. Université de Toulouse. Laboratoire Hétérochimie Fondamentale et Appliquée) ; Saffon-Merceron, Nathalie (Centre National de la Recherche Scientifique. Université de Toulouse. Institut de Chimie de Toulouse) ; Branchadell Gallo, Vicenç (Universitat Autònoma de Barcelona. Departament de Química) ; Kato, Tsuyoshi (Centre National de la Recherche Scientifique. Université de Toulouse. Laboratoire Hétérochimie Fondamentale et Appliquée)
A donor-stabilized silylene 4 featuring a Ni0-based donating ligand was synthesized. Complex 4 exhibits a pyramidalized and nucleophilic SiII center and shows a peculiar behavior due to the cooperative reactivity of Si and Ni centers. [...]
2022 - 10.1002/anie.202201932
Angewandte Chemie (International ed. Internet), (May 2022), art. e202201932  
4.
9 p, 844.2 KB Computational Organometallic Catalysis : Where We Are, Where We Are Going / Lledós, Agustí (Lledós i Falcó) (Universitat Autònoma de Barcelona. Departament de Química)
This essay gives my personal perspective of the current stage of computational methods applied to modeling organometallic catalysis, as well as the new directions the field is taking. The first part of the essay deals with what I consider the state-of-the-art to build up energy profiles, regarding both chemical and computational models. [...]
2021 - 10.1002/ejic.202100330
European journal of inorganic chemistry, Vol. 2021, Issue 26 (July 2021) , p. 2547-2555  
5.
14 p, 4.7 MB Efficient blue light emitting materials based on : M -carborane-anthracene dyads. Structure, photophysics and bioimaging studies / Chaari, Mahdi (Institut de Ciència de Materials de Barcelona) ; Kelemen, Zsolt (Institut de Ciència de Materials de Barcelona) ; Choquesillo-Lazarte, Duane (Laboratorio de Estudios Cristalográficos) ; Gaztelumendi, Nerea (Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia) ; Teixidor, Francesc (Institut de Ciència de Materials de Barcelona) ; Viñas, Clara (Institut de Ciència de Materials de Barcelona) ; Nogués, C. (Carme) (Universitat Autònoma de Barcelona. Departament de Biologia Cel·lular, de Fisiologia i d'Immunologia) ; Núñez, Rosario (Institut de Ciència de Materials de Barcelona)
Efficient monosubstitution of the non-iodinated, mono-iodinated and di-iodinated m-carborane cluster at one C has led to the preparation of three single organic molecule-carborane dyads (4-6), which exhibited exceptional fluorescence properties with quantum yield values of 100% in solution, for all of them, with maxima around 415 nm, which correspond to the locally excited state (LE) emission. [...]
2019 - 10.1039/c9bm00903e
Biomaterials science, Vol. 7, Issue 12 (October 2019) , p. 5324-5337  
6.
6 p, 1.4 MB Halide Abstraction Competes with Oxidative Addition in the Reactions of Aryl Halides with [Ni(PMePh)] / Funes-Ardoiz, Ignacio (Institut Català d'Investigació Química) ; Nelson, David J. (University of Strathclyde) ; Maseras Cuní, Feliu (Universitat Autònoma de Barcelona. Departament de Química)
Density functional theory (DFT) calculations have been used to study the oxidative addition of aryl halides to complexes of the type [Ni(PMePh)], revealing the crucial role of an open-shell singlet transition state for halide abstraction. [...]
2017 - 10.1002/chem.201702331
Chemistry, Vol. 23, Issue 66 (November 2017) , p. 16728-16733  
7.
9 p, 1.3 MB Structural preferences in phosphanylthiolato platinum(II) complexes / Duran i Carpintero, Josep (Universitat de Girona. Departament de Química) ; Polo Ortiz, Alfons (Universitat de Girona. Departament de Química) ; Real i Obradors, Juli (Universitat Autònoma de Barcelona. Departament de Química) ; Benet-Buchholz, Jordi (Institut Català d'Investigació Química) ; Solà i Puig, Miquel (Universitat de Girona. Departament de Química) ; Poater, Albert (Universitat de Girona. Departament de Química)
The transition-metal complexes of heterotopic phosphanylthiolato ligands are useful in various reactions which depend on the stereochemistry of the complexes. Bis-chelate complex [Pt(SCH₂CH₂PPh₂-κ²P,S₂)] (1) was obtained in good yields by direct base-free substitution reaction of the corresponding phosphanylthiol (HSCH₂CH₂PPh₂) with K₂PtCl₄ or by oxidative addition of the same phosphanylthiol to Pt(PPh₃)₄. [...]
2016 - 10.1002/open.201500136
ChemistryOpen, Vol. 5, issue 1 (Feb. 2016) , p. 51-59  

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