Solvent effects on electronic absorption spectra of some chlorophenols: Part I - Excited state dipole moments and specific solute-solvent interaction energies based on McRae's theory
845-853On the basis of McRae's theory [J phys Chem, 58 (1954) 1002] of solvent effect on electronic spectra, a systematic and step-wise procedure for estimating the excited state dipole moments (Il,) of various chlorophenols and their specific interaction energies (Es) with different types of solvents is described. The μe’s estimated by employing only saturated hydrocarbon sovlents are found to be more reliable than those estimated using pairs of polar solvents such as acetonitrile and diethyl ether. The Es values are found to decrease with increase in the number of CI atoms in the solute molecules. Interaction energies of water are generally the largest and those of carbon tetrachloride and diethyl ether are usually negligibly small. The specific interactions in the present solute-solvent systems are electrostatic in nature
