Synthesis and Characterization of Cobalt (II) Compiexes of Cyclohexanone Semicarbazole, and Cyclohexanone Thiosemicarbazone

摘要

Cobalt (II) complexes of the general composition Co(L)2X2(L = cyclohexanone semicarbazone and cyclohexanone thiosemicarbazone, and x = cl, sr, I, NO3, SCN and 1/2 SO4) have been prepared and characterized by elemental analysis, magnetic susceptability measurements, electronic, infrared and electon spin resonance spectral studies. All the complexes are of the high-spin type. The cyclohexanone semicarbazone complexes appear to have six-coordinate tetragonal geometry. Among the cyclohexanone thiosemicarbazone complexes, the chloro, bromo, iodo, and thiocyanato are five-coordinate, while the nitrato and sulphato complexes are four-coordinate tetrahedral.