The preparation of mixed-ligand dithiolene complexes: X-ray structure of Pt(PMe 2Ph) 2(mnt) and [Bu 4N][Au(mnt) 2

Abstract

Reaction Of PtCl 2(PR 3) 2 with sodium dithiolates gives mixed-ligand complexes such as Pt(PR 3) 2(mnt) ( 1). Attempts to prepare mixed SN/mnt complexes of gold were unsuccessful, [Bu 4N][Au(mnt) 2] ( 2) being obtained. New compounds were characterized by IR and NMR spectroscopy and microanalyses, and in the case of 1 and 2 by X-ray crystallography. Both 1 and 2 are square planar. In 2, one of the crystallographically independent anions lies over a symmetry related neighbour.