Synthesis and structural studies of some tetrathiocyanate and tetraselenocyanate binuclear mixed-metal complexes

Abstract

Complexes of MM?(XCN)4 (M = CoII, NiII; M? = ZnII, CdII, HgII; X = S, Se) with triphenyl-phosphine have been synthesized and characterized by elementary analysis, molar conductance, magnetic moment, infrared and electronic spectral studies. All the complexes are binuclear mixed- metal monomeric bridged of the type (Ph3P)2M(NCX)2M?(XCN)2 except for [Ni(PPh3)4] [Zn(NCS)4] which is cationic-anionic.