Collect. Czech. Chem. Commun. 1989, 54, 3238-3244

Coordination compounds of nickel and cobalt with the Schiff base derived from thiosemicarbazide and diacetylmonooxime

František Březina, Zdeněk Šindelář, Richard Pastorek and Jan Lasovský

Department of Inorganic and Physical Chemistry, Palacký University, 771 47 Olomouc


Coordination compounds with the compositions [Ni(H2TSD)2]Cl2, [Co(H2TSD)2]Cl2, [NiH2O(TSD)], [CoH2O(TSD)] and [Co(TSD)(HTSD)].2H2O were prepared, where H2TSD = HON=C(CH3)C(CH3)=N.NH.CS.NH2. Cyclic voltammetry indicated that [NiH2O(TSD)] can be oxidized and reaction of this compound with bromine yielded the nickel compound with the composition [Ni(TSD)Br]. The properties of the ligand that make it useful for stabilizing the higher oxidation states of nickel are discussed.