Tetranuclear Homo- or Heterobimetallic Asymmetric Palladium(II)-Platinum(II) Complexes with Single Halide Bridges. Molecular Structure of [Pt(C6F5)2(μ-Br)Pd(η4-1,5-C8H12)(μ-Br)Pt(C6F5)2(m-Br)Pd(η4-1,5-C8H12)(μ-Br)]

R. Usón, J. Forniés, M. Tomás, B. Menjón, A. J. Welch

Research output: Contribution to journalArticle

Abstract

Treatment of cis-[M(C6X5)2(THF)2] (M = Pd, Pt; X = F, Cl; THF = tetrahydrofuran) with M'X'2(COD) (M' = Pd, Pt; X' = Cl, Br, I; COD = 1,5-cyclooctadiene) results in the formation of homo-and heteronuclear palladium or platinum complexes of general formula [(C6X5)2M(μ-X')2M'(COD)]nwhich are binuclear (n = 1) in CHCl3solutions. The molecular structure of [Pt(C6F5)2(μ-Br)Pd(COD)(μ-Br)Pt(C6F5)2(μ-Br)-Pd(COD)(μ-Br)] has been established by single-crystal X-ray crystallography, showing that the complex is tetranuclear in the solid state. The molecule resides on a center of symmetry and can be regarded as an eight-membered ring skeleton being made up of two Pt(C6F5)2” and two “Pd(η4-1,5-C8H12)” groups in an alternate way connected by single bromide bridges. Crystal data: monoclinic, a = 26.742 (6) Å, b = 9.3916 (18) Å, c = 18.133 (5) Å; β= 108.424 (22)°; space group C2/c; Z = 4. The structure has been solved from diffractometer data by direct and Fourier methods and refined by full-matrix least squares to R = 0.0369 for 3059 observed reflections.

Original languageEnglish
Pages (from-to)1318-1323
Number of pages6
JournalOrganometallics
Volume7
Issue number6
DOIs
Publication statusPublished - 1988

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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