ISSN:
0947-6539
Keywords:
clusters
;
copper complexes
;
selenium compounds
;
structure elucidation
;
sulfur compounds
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Reaction of copper(I) acetate with bis(trimethylsilyl)chalcogenides E-(SiMe3)2 (E = S, Se) in the presence of tertiary phosphines in organic solvents leads to the formation of chalcogenbridged copper clusters in crystalline form. In recent investigations, the following structures were isolated and characterised by X-ray crystallography: [Cu24S12-(PMeiPr2)12] (1), [Cu28S14(PtBu2Me)12] (2), [Cu50S25(PtBu2Me)16] (3), [Cu70Se35-(PtBu2Me)21] (4), [Cu31Se15(SeSiMe3)-(PtBu2Me)12] (5) and [Cu48Se24(PMe2-Ph)20] (6). The cluster cores of 1-6 have new structures or new structural characteristics and go some way towards providing an insight into the mechanisms of cluster formation reactions. With the help of the aforementioned compounds a number of structure principles that govern sulfur-and selenium-bridged copper clusters can be formulated.
Additional Material:
9 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/chem.19960021113
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