In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2006, No. 4 ( 2006-02), p. 735-739
Abstract:
The reaction of [Bi(O t Bu) 3 ] with LiOSiMe 3 gave the heterobimetallic bismuth‐oxo cluster [Bi 3 Li 5 (μ 5 ‐O) 2 (μ 3 ‐OSiMe 3 ) 2 (μ 3 ‐O t Bu) 2 (μ 2 ‐O t Bu) 6 ] ( 1 ) after elimination of Me 3 SiOSiMe 3 . The cage compound 1 is the first example of a mixed‐metal alkoxide/siloxide composed of lithium and bismuth. Crystals of 1· 2 C 7 H 8 and 1· 1.5 THF suitable for X‐ray single crystal structure analysis were obtained by crystallisation from toluene and THF, respectively. Both solvates crystallise in the orthorhombic space group Pmmn with Z = 2. The lattice constants are a = 16.267(3) Å, b = 17.126(3) Å and c = 12.155(2) Å ( 1· 2 C 7 H 8 ) and a = 16.353(2) Å, b = 17.156(1) Å and c = 12.256(1) Å ( 1· 1.5 THF). In both compounds the solvent molecules occupy channels along the c ‐axis. The basic molecular unit is best described as a face‐sharing double cubane [BiLi 5 (μ 4 ‐O) 2 (μ 3 ‐OSiMe 3 ) 2 (μ 3 ‐O t Bu) 2 ] which is coordinated by two [Bi(O t Bu) 3 ] molecules. The compound is kinetically labile in solution and readily decomposes in 1,1,2,2‐tetrachloroethane with elimination of 1,1,2‐trichloroethylene. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
Type of Medium:
Online Resource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2006:4
DOI:
10.1002/ejic.200500629
Language:
English
Publisher:
Wiley
Publication Date:
2006
detail.hit.zdb_id:
1475009-0
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