Molecular structures of tetrafluoroethylene complexes of platinum(0). Part I. Crystal structure of tetrafluoroethylenebis(triphenylarsine)-platinum(0)

Abstract

Crystals of the title compound are monoclinic, space group P2₁/n with a= 11.291 ± 0.010, b= 21.01 8 ± 0.015, c= 14.380 ± 0.010 Á, β= 95.54 ± 0.05°. The structure was determined from counter intensity data by heavy-atom techniques and refined by block-diagonal least-squares to R 0.053 for 5 110 reflections. Important mean bond lengths are : Pt–As 2.435, Pt–C 2.01 5, and C–C 1.45 Å. The extent of rehybridisation of the olefinic carbon atoms is discussed and the geometry of the complex compared with that in related molecules.