Af. Bunkin et al., 4-PHOTON SPECTROSCOPY OF COLLECTIVE INTERACTIONS BETWEEN WATER-MOLECULES AND ELECTROMAGNETIC-RADIATION, Physical review. B, Condensed matter, 52(13), 1995, pp. 9360-9363
Nine bands of low frequency intermolecular vibrations of liquid water
in the range 15-85 cm(-1) have been found with the help of the four-ph
oton polarization spectroscopy method. Quantum theory of collective di
pole interaction between water molecules and electromagnetic field hav
e been proposed. The calculated frequencies of the terms are in qualit
ative and approximate quantitative agreement with the experimental one
s.