Abstract

Reactions of the cyanide complexes of the type Co(CN)(DH)₂L moiety (where L= thiourea, acetamide, formamide, semicarbazide, pyrazole and aniline; DH = dimethylglyoxime) with the corresponding benzyl(aqua)cobaloxime PhCH₂Co(DH)₂OH₂  gives a series of  homometallic cyano-bridged compounds of the type PhCH₂Co(DH)₂CNCo(DH)₂L. All these complexes have been synthesized and characterized by means of IR, LC/MS, ¹H,¹³C NMR and (C, H, N) analysis as well as their antimicrobial activities. The formation of cyanide bridge is evident from the IR spectra by the appearance of ν(CN) shifts with respect to the mononuclear parent complex.

Key words: Cyano-bridged, bimetallic complexes, antimicrobial activity.