Spectroscopic approach in the characterization of the copper(II) complexes of isatin-3,2′-quinolyl-hydrazones and their adducts

Copper(II) complexes of isatin-3,2′-quinolyl-hydrazones of the type [Cu(L)X] (where X = Cl−, Br−, NO3−, CH3COO− and ClO4−] and their adducts Cu(L)X.2Y [where Y = pyridine or dioxane and X = Cl−, Br−, NO3− and ClO4−] have been synthesized under controlled experimental conditions and characterized by using the modern spectroscopic and physicochemical techniques viz. IR, electronic, EPR, elemental analysis, magnetic moment susceptibility measurements and molar conductance, etc.On the basis of spectral studies a four coordinated square planer geometry is assigned for Cu(L)X type complexes whereas the adducts (Cu(L)X.2Y were found to have a six coordinated octahedral geometry.