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

Abstract

Complexes of MM?(XCN)₄ (M = Co^II, Ni^II; M? = Zn^II, Cd^II, Hg^II; 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.