Synthesis and X-ray single crystal structures of copper(I) complexes:: Cu(S2PiBu2)•(PMe3)3 andCu(S2PiBu2)•(PPh3)2

Two new copper(I) complexes Cu((S2PBu2)-Bu-i) . (PMe3)(3) (1) and Cu((S2PBu2)-Bu-i) . (PPh3)(2) (2) have been synthesised and characterised by spectroscopic and X-ray crystallographic methods. Both compounds are monomers in the solid state where copper is four coordinate and the co-ordination geometry is based on a distorted tetrahedron. The dithiophosphinate ligand behaves as a monodentate in compound 1 and bidentate in compound 2. Compound 1 is the only example in Cu(1) complexes with a monodentate dithiophosphinate. (C) 2002 Elsevier Science B.V. All rights reserved.