Synthesis and characterization of heterodinuclear thiolate complexes containing the Pd(η3-allyl)+ moiety. Crystal structure of [(dppe)Pd(μ-SC6H4Me-p)2Pd(η3-C3H5)][ClO4]

Article abstract of DOI:10.1016/S0277-5387(00)00440-X

Heterodinuclear complexes of the types [(dppe)M(μ-SR)₂Pd(η³-allyl)][ClO₄] (M = Pd or Pt) and [(dppe)Pt(μ-SC₂H₄S)Pd(η³-allyl)][ClO₄] [dppe = 1,2-bis(diphenylphosphino)ethane; allyl = C₃H₅ or C₄H₇] have been obtained by reaction of the corresponding cis-dithiolato complexes, [M(SR)₂ (dppe)] or [Pt(SC₂H₄S)(dppe)], and [Pd(η³-allyl)(PhCN)₂][ClO₄]. The identity of these complexes has been established by NMR (¹H and ³¹P) spectroscopy. The crystal structure of [(dppe)Pd(μ-SC₆H₄Me-p)₂Pd(η³-C₃H₅)][ClO₄] has been determined by single-crystal X-ray methods. The p-tolyl groups on the sulfur atoms adopt a syn conformation with respect to the central Pd-S₂-Pd core. (C) 2000 Elsevier Science Ltd.