Complexes of M3S44+ (M = Mo, W) with chiral alpha-hydroxy and aminoacids: Synthesis, structure and solution studies
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Other documents of the author: Sokolov, Maxim; Adonin, Sergey A.; Virovets, Alexander V.; Abramov, Pavel A.; Vicent Barrera, Cristian; Llusar, Rosa; Fedin, Vladimir P.
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comunitat-uji-handle2:10234/7013
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http://dx.doi.org/10.1016/j.ica.2012.08.023 |
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Title
Complexes of M3S44+ (M = Mo, W) with chiral alpha-hydroxy and aminoacids: Synthesis, structure and solution studiesAuthor (s)
Date
2013-01Publisher
ElsevierISSN
0020-1693Type
info:eu-repo/semantics/articlePublisher version
http://www.sciencedirect.com/science/article/pii/S0020169312005117Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
New complexes of triangular clusters M3S4
4+ (M = Mo, W) with incomplete cuboidal metal–chalcogenide
framework bearing chiral a-hydroxy and amino acids have been prepared. L-lactic acid (H2lac), L-mandelic
acid ... [+]
New complexes of triangular clusters M3S4
4+ (M = Mo, W) with incomplete cuboidal metal–chalcogenide
framework bearing chiral a-hydroxy and amino acids have been prepared. L-lactic acid (H2lac), L-mandelic
acid (H2man), and L-alanine (Hala) react with [W3S4Br4(PPh3)3] in 1:1 ratio to yield, respectively,
monosubstituted complexes [W3S4(PPh3)3Br3(Hlac)(CH3CN)] (1), [W3S4(PPh3)3Br3(Hman)(CH3CN)] (2),
and [W3S4(PPh3)3Br3(Hala)(CH3CN)]Br (3). In the presence of base [Mo3S4Cl4(PPh3)3] gives trisubstituted
complexes [Mo3S4(PPh3)3(Hlac)2(lac)] (4) and [Mo3S4(PPh3)3(Hman)3]Cl (5). Circular dichroism studies of
4 indicate chirality transfer from the ligand to the Mo3S4
4+ cluster core. These complexes incorporate Cu+
with the formation of corresponding {M3CuS4}5+ cuboidal derivatives. NMR and ESI-MS studies of solution
behavior are presented. [-]
Is part of
Inorganica Chimica Acta, vol. 395, p.11–18Rights
Copyright 2012 Published by Elsevier B.V.
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