Tri- and tetra-nuclear palladium(II) and/or platinum(II) compounds with double thiolato bridges. Crystal structure of [P(CH2Ph)Ph3]2[(C6F5)2Pd(µ-SC6F5)2Pt-(µ-SC6F5)2 Pt(µ-SC6F5)2Pd(C6F5)2]

Abstract

The complexes cis-[M(C₆F₅)₂(thf)₂](M = Pd or Pt, thf = tetrahydrofuran) react (2:1) with [NMe₄]₂[M′(SC₆F₅)₄][M′= Pd or Pt] or Q₂[M′₂(SC₆F₅)₆][M′= Pd, Q = NBu₄; M′= Pt, Q = NMe₄ or P(CH₂Ph)Ph₃] to give homo- or hetero-metallic tri- or, respectively, tetra-nuclear dianions. The structure of the tetranuclear complex [P(CH₂Ph)Ph₃]₂[(C₆F₅)₂Pd(µ-SC₆F₅)₂Pt(µ-SC₆F₅)₂Pt(µ-SC₆F₅)₂Pd(C₆F₅)₂] has been established by single-crystal X-ray crystallography: the dianion possesses a crystallographic inversion centre; space group P, a= 12.247(2), b= 12.901 (2), c= 17.942(3)Å, α= 84.47(2), β= 78.20(2), γ= 77.21 (2)°, Z= 1. and R= 0.0454. The co-ordination at the metal atoms is planar. The outer (palladium) planes form an angle of 28.20(11)° with the inner ones.