Issue 0, 1970

Five- and six-co-ordinate tertiary phosphine complexes of bis(diphenylphosphinodithioato)palladium(II)

Abstract

The interaction of Pd(S2PPh2)2 with tertiary phosphines to give both 1 : 1 (for PPh3, PEtPh2, PMe2Ph, and PEt3) and 1 : 2 (for PMe2Ph and PEt3) adducts is described. l.r. spectra and molecular-weight evidence suggest that in the solid state, these are genuine five-and six-co-ordinate palladium(II) complexes respectively. Conversion between two five-co-ordinate isomers has been followed in the solid state by i.r. spectroscopy and tentative conclusions have been made about the stereochemistry of these isomers. In solution, i.r. evidence suggests that the 1 : 1 adducts may exist as a mixture of solvated square pyramidal species although the presence of a trigonal bipyramidal structure cannot be discounted. In solution, the 1 : 2 complexes rapidly dissociate to the 1 : 1 adducts and can be stabilised only by addition of excess of tertiary phosphine.

Article information

Article type
Paper

J. Chem. Soc. A, 1970, 1504-1511

Five- and six-co-ordinate tertiary phosphine complexes of bis(diphenylphosphinodithioato)palladium(II)

T. A. Stephenson and B. D. Faithful, J. Chem. Soc. A, 1970, 1504 DOI: 10.1039/J19700001504

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