Transition metal derivatives of the tetracyanoquinodimethandiide ion, TCNQ2−

Abstract Oxidation of some simple organometallic compounds with tetracyanoquinodimethan (TCNQ) in acetonitrile gave metal derivatives of TCNQ 2− which were characterized by infrared and X-ray photoelectron spectroscopy and magnetic susceptibility. Strong, low frequency vCN bands around 2180 and 2105 cm −1 are characteristic of TCNQ 2− . New compounds prepared were V(TCNQ) 2 , Cr(TCNQ) 2 (CH 3 CH) 2 , Mo(TCNQ)(CO) 2 (CH 3 CN) 2 , W(TCNQ) 2 (CH 3 CN), Co(TCNQ)(CH 3 CN) 2 and Ni(TCNQ) 2 .