SYNTHESIS AND CHARACTERIZATION OF COBALT(II) AND NICKEL(II) CHELATES OF SULFUR-CONTAINING OXIMES

Cobalt(II) and nickel(II) complexes of benzil-alpha-monoxime-2-iminoet hanethiol (BMETH(2)), benzil-alpha-monoxime-2-iminobenzenethiol (BMBTH (2)), benzil-alpha-monoxime thiosemicarbazone (BMSH(2)) and benzil-alp ha-monoxime semicarbazone (BMSH(2)) have been synthesized and characte rized by elemental analysis, conductivity, magnetic susceptibility mea surements, IR and electronic spectral data. The molar conductivities s uggest that all dimeric complexes are non-electrolytes. The IR and mag netic susceptibility data suggest that all the complexes have dimeric structure with bridged oxime groups. The electronic spectral data sugg est an octahedral structure for all [except (Co-BMET)(2) and (Co-BMBT) (2)]-complexes. Various electronic spectral parameters have been calcu lated and discussed.