Copper(II) complexes of the bidentate chelate di(2-pyridyl) sulphide

Abstract

Copper(11) complexes containing the chelate di(2-pyridyl) sulphide (dps) are described for the first time. They include (i) mono complexes of the type Cu dpsX₂ (X = Cl, Br, NO₂, and 2X = SO₄); (ii) five-coordinate bis complexes of the type [CuX dps₂]ClO₄ (X = Cl,    Br, SCS, and NO,); and (iii) the bis complex Cu dps,-(ClO₄)₂,H₂O. Attempts to prepare the compound with X = I yielded the yellow copper(1) complex Cu dpsI. These compounds have been investigated by physicochemical methods and are discussed in the light of known copper(11) complexes containing nitrogen chelates.