Pm. Maxton et al., NONLINEAR RAMAN-SPECTROSCOPY OF INTERMOLECULAR VIBRATIONS IN BENZENE-(WATER)(N) CLUSTERS, Chemical physics letters, 241(5-6), 1995, pp. 603-610
We report species-selective spectra of intermolecular vibrational tran
sitions in benzene-(water), clusters (n = 1-5), as measured by mass-se
lective, ionization-loss stimulated Raman spectroscopy. The spectra ex
hibit prominent Raman activity in the range 35-65 cm(-1). In addition,
Raman bands at less than 10 cm(-1) are found for the n = 1 and n = 3
species, and rotational Raman features are observed for all of the clu
sters. It is argued that much of the Raman activity is due to intermol
ecular vibrations in which water moieties move collectively across the
plane of the benzene.