UV visible spectroscopic study of solvation of 2,6-diphenyl-4(2,4,6-triphenyl-1-pyridino)phenolate in ternary solvent mixtures

A new method for analyzing the cybotactic zone in a ternary solvent system by means of electronic absorption spectroscopy has been presented. The posi tion of the intramolecular charge transfer absorption band of 2,6-diphenyl- 4(2,4,6-triphenyl-1-pyridino) phenolate has been monitored in four ternary solvent mixtures in which one of the pairs are partially miscible. Investig ations have been done in the completely miscible region of the ternary mixt ures including the binodal curve. Results have been explained by extending the existing models of solvation in binary solvent mixtures to ternary syst ems. (C) 2001 Elsevier Science B.V. All rights reserved.