Metal-metal multiply-bonded complexes of technetium. 7. Oxidative decomposition of tetrachlorotetrakis (dimethylphenylphosphino) ditechnetium (II) by an aminium hexachloroantimonate(V)

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作者：

Lab. for Molec. Struct. and Bonding, Department of Chemistry, Texas A and M University, College Station, TX 77843, United States ^{[1
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不详 ^{[2
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不详 ^{[3
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来源：

Inorg. Chim. Acta | / 1-2卷 / 187-190期

基金：

美国国家科学基金会;

关键词：

Single crystals - Crystal structure - X ray crystallography - Bromine compounds - Molecules - Antimony compounds - Chlorine compounds;

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摘要：

TcCl4(PMe2Ph)2·2SbCl3 was isolated in low yield from the reaction of Tc2Cl4(PMe2Ph)2 with 2 equiv. of [(p-BrC6H4)3N] [SbCl6] in acetonitrile. Single crystals were obtained by slow evaporation of a toluene solution. The structure, determined by X-ray crystallography, is composed of infinite one-dimensional chains of an alternating sequence of TcCl4 (PMe2Ph)2 and (SbCl3)2 molecules. The individual molecular species are loosely associated through Lewis acid-base interactions between the equatorial chlorine atoms of TcCl4(PMe2Ph)2 and the individual SbCl3 units. The chains are continued by an additional weak Lewis acid-base interaction between neighboring SbCl3 molecules. The distorted pentagonal bipyramidal coordination geometry about the antimony atom is completed by a weak π-interaction with the phenyl ring of TcCl4(PMe2Ph)2. Crystal data for TcCl4(PMe2Ph)2·2SbCl3 (1) at 23°C: M=972.28, triclinic, P1¯ (No. 2), a=10.591(3), b=10.619(2), c=7.578(1) Å, α=104.54(2), β=99.69(2), γ=69.92(2)°, V=771.7(3) Å3, Z=1. © 1998 Elsevier Science S.A.

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