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Issue 1, 1978
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Unsaturated σ-hydrocarbyl transition-metal complexes. Part 4. Crystal and molecular structure of trans-chlorobis(diethylphenylphosphine)-(phenylethynyl)platinum(II) and comments on the relative trans influence of various carbon ligands

Abstract

The molecular structure of trans-[PtCl(C[triple bond, length half m-dash]CPh)(PEt2Ph)2] has been determined by X-ray diffraction methods. The crystals are monoclinic, space group P21, with a= 12.359(3), b= 13.015(3), c= 9.031(2)Å, β= 101.65(2)°, and Z= 2. The structure has been solved by the heavy-atom method and refined by full-matrix least squares to R 0.046 for 1 877 diffractometric intensity data. The crystals contain discrete molecules in which the platinum coordination is square planar. The phenylethynyl group is non-linear, with a Pt–C[triple bond, length half m-dash]C angle of 163(2)°. Selected bond lengths are Pt–Cl 2.407(5) and Pt–C 1.98(2)Å. The structural trans influences of C[triple bond, length half m-dash]CPh, CH[double bond, length half m-dash]CH2, and CH2SiMe3 ligands in platinum(II) complexes are compared; there is only a small dependence on hybridization at the ligating carbon atom.

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Article type: Paper
DOI: 10.1039/DT9780000046
Citation: J. Chem. Soc., Dalton Trans., 1978,0, 46-50
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    Unsaturated σ-hydrocarbyl transition-metal complexes. Part 4. Crystal and molecular structure of trans-chlorobis(diethylphenylphosphine)-(phenylethynyl)platinum(II) and comments on the relative trans influence of various carbon ligands

    C. J. Cardin, D. J. Cardin, M. F. Lappert and K. W. Muir, J. Chem. Soc., Dalton Trans., 1978, 0, 46
    DOI: 10.1039/DT9780000046

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