LIGATING PROPERTIES OF TERT-PHOSPHINE ARSINE SULFIDES OR SELENIDES .9. PREPARATION AND SPECTROSCOPIC STUDIES OF COPPER(I) COPPER(II) COMPLEXES WITH BIS(-PHOSPHINE CHALCOGENIDES)

The analytical, molar conductance and spectroscopic studies of new complexes of copper(I) and copper(II) with bis(-phosphine chalcogenides), Ph2P(E)(CH2)nP(E)Ph2(L-L) are reported. The complexes are of the types: (a) [CuX(L-L)](X, n, E: Cl, 2-4, Br, 2, S; Cl, Br, 1, Se); (b) [Cu2X2(L-L)](X, n, E: Cl, Br, 2, 3, Se) and (c) [CuCl2(L-L)](n, E: 2, 3, S). Possible structures have been derived.