Phosphorus-, sulfur-, and nitrogen-containing ligands in complexes with copper(I) halides

Reactions between mixed phosphorous acid esters containing P-N, P-S and P-N , P-O bonds with Cu(I) halides yield a series of new P,S,N,O-containing met al complexes. Phosphoroamidothioite complexes are unstable and easily dispr oportionate in the metal coordination sphere to give stable compounds conta ining symmetrical phosphorotrithioite and phosphorous triamide ligands. The structure of the compound (EtS)(2)PNE2 . CuBr was studied by X-ray diffrac tion. In this complex monodentate coordination via phosphorus and bidentate coordination via phosphorus and sulfur are observed simultaneously.