Preparation and Study of Some Binuclear Nickel (II) Complexes Containing Mixed Ligands (Salicylaldehyde Thiosemicarbazone and Carboxylic Acid)

Preparation and characterization of new nickel (II) complexes with mixed ligands including salicylaldehyde thiosemicarbazone-STH2 and carboxylic acid-AH2 {salicylic acid-SH2 or anthranilic acid-AnH2 or phthalic acid-PH2} have been studied . The resulted complexes were characterized using different physico-chemical methods from which the general formulaes [Ni2(AH2)2(STH2)2(NO3)2](NO3)2 or [Ni2(AH2)2(STH2)2Xn] have been suggested in neutral medium . Whereas, in basic medium the formula [Ni2(AH)2(STH)2] have been proposed {where X = CO32- or CH3CO2- , n = 2 or 4} . The study suggested that the complexes had octahedral geometries forming dimer (binuclear complexes) .