Preparation and Structure of a New Dipalladium Complex with Bridging Diphenylgermyl Ligands. Diverse Reactivities of Pd(PCy3)2 and Pt(PCy3)2 toward Ph2GeH2
Makoto TanabeNaoko IshikawaKohtaro Osakada
Abstract
A dinuclear palladium complex having bridging diphenylgermyl ligands, [{Pd(PCy3)}2(μ-HGePh2)2] (1), was obtained from the reaction of Ph2GeH2 with [Pd(PCy3)2]. X-ray crystallographic results and NMR spectra of 1 revealed coordination of the Ge ligands to two Pd centers via a Ge−H−Pd three-center−two-electron bond and a Ge−Pd σ bond. The reaction of Ph2GeH2 with [Pt(PCy3)2] produces the (germyl)hydridoplatinum complexes cis-[Pt(H)(GeHPh2)(PCy3)2] (cis-3) and trans-[Pt(H)(GeHPh2)(PCy3)2] (trans-3) as the kinetic and thermodynamic products, respectively.
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