Listar por tema "Tungsten"
Mostrando ítems 1-4 de 4
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Enantioselective synthesis of tungsten trimetallic cluster chalcogenides
Elsevier (2015-01)Excision of {W3Q7Br4}n (Q = S, Se) of polymeric phases using chiral diphosphines is a general procedure to synthesize optically pure trinuclear clusters. Chiral transfer from the enantiomerically pure diphosphines ... -
Intrinsic gas-phase reactivity toward methanol of trinuclear tungsten W3S4 complexes bearing W-X (X=Br, OH) groups
American Chemical Society (2008-11)Electrospray ionization (ESI) tandem mass spectrometry is used to investigate the gas-phase dissociation of trinuclear sulfide W3S4 complexes containing three diphosphane ligands and three terminal bromine atoms, namely, ... -
Photoanodes Based on Nanostructured WO3 for Water Splitting
Wiley (2012-08)Anodically grown WO3 photoelectrodes prepared in an N-methylformamide (NMF) electrolyte have been investigated with the aim of exploring the effects induced by anodization time and water concentration in the electrochemical ... -
Selective synthesis of triangular cluster oxido-sulfidocomplexes of Mo and W: High yield preparations of [Mo3O2S2(H2O)9]4+, [W3O2S2(H2O)9]4+, [W2MoO2S2(H2O)9]4+ and their derivatization
Elsevier (2010)Reaction of [Mo2O2(μ-S)2(H2O)6]2+ with Mo(CO)6 or metallic Mo under hydrothermal conditions (140 °C, 4 M HCl) gives oxido-sulfido cluster aqua complex [Mo3(μ3-S)(μ-O)2(μ-S)(H2O)9]4+ (1). Similarly, [W3(μ3-S)(μ-O)2(μ-S)(H2O)9]4+ ...