C. L. Sharma, R. Arya, S. Narvi
Sep 1, 1986
Citations
0
Influential Citations
1
Citations
Journal
Thermochimica Acta
Abstract
Abstract The stepwise stability constants, free energy, enthalpy and entropy changes for the formation of Co(II), Ni(II) and Cu(II) complexes with 4-methyl maleanilic and 4-chloromaleanilic acids have been determined. Analysis of thermochemical parameters indicates coordination of the ligands through the nitrogen of secondary amide and the oxygen of carboxylate groups. The complexes have been isolated in solid state and characterised on the basis of analytical results; conductance, magnetic, electrical and infrared data. The Cu(II) complexes have been assigned square planar while Co(II) and Ni(II) were found to have octahedral structures.