Xj. Zhang et Cd. Jonah, EFFECT OF TEMPERATURE ON THE DYNAMICS OF BENZOPHENONE ANION SOLVATIONIN ALCOHOL, Journal of physical chemistry, 100(17), 1996, pp. 7042-7049
The solvation of the benzophenone anion in 1-propanol, 2-propanol, and
1-butanol has been measured over the temperature range -10 to -50 deg
rees C. The initial spectra of the benzophenone anion were very simila
r in all three alcohols. The final spectrum of the benzophenone anion
in 2-propanol is less blue-shifted (17 nm) than the spectrum of the an
ion in 1-propanol and 1-butanol. The activation energies for solvation
are 22 kJ/mol for 1 propanol and 1-butanol and 16 kJ/mol for 2-propan
ol, which are similar to the energy for hydrogen bond breakage in the
pure solvents. This suggests that the solvent H-bond breakage plays an
important role in anion solvation.