Bis(ligand)metall-komplexe von nickel,palladium und platin mit cyclischen liganden vom divinylboran-typ期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Bis(ligand)metall-komplexe von nickel,palladium und platin mit cyclischen liganden vom divinylboran-typ

Authors:	GE Herberich M Thönnessen D Schmitz

Institution:	Institut für Anorganische Chemie der Technischen Hochschule Aachen, Professor-Pirlet-Strasse 1, D-5100 Aachen B.R.D.

Abstract:	Nine complexes of type ML₂ with M = Ni, Pd, Pt and L = X(CHCH)₂BC₆H₅ (X = (CH₃)₂C, (CH₃)₂Si, (CH₂)₂) are described. The X-ray structural analysis of Ni(CH₃)₂Si(CHCH)₂BC₆H₅]₂ and the ¹H and ¹¹B NMR spectra demonstrate a sandwich-type bis(η⁵-divinylborane)metal structure with C₂ molecular symmetry. All complexes show exceptional thermal stability as compared to the corresponding bis(1,5-cyclooctadienyl)metal complexes. In the ¹H NMR spectra internal rotation of the two ligands with respect to each other is observed for two Pd complexes and the Pt complexes at room temperature.

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