Spectrophotometric Studies of Charge Transfer Complex between p-Chloranil and Certain Aromatic Amines at 302K

摘要

Spectrophotometric studies of charge transfer complexation between p-chloranil and aromatic amines like N,N-dimethyl amine, N-methyl amine, o-toluidine, benzyl amine and diphenyl amine have been carried out in chioroform medium. All the complexes show charge transfer band in the visible region and they form 1:1 complexes of n-#pi# type. The relevant specral parctral parameters for the charge transfer complexes like association constant,Gibb's free energy, molar extincion coefficient, ionisation potential and resonance energy were calculated. A comparative study on the evaluation of association constant is investigated by modified B-H, Scott and F-H-W equations, besides proposing a semiempirical McConnel equation.