On the water dimer contribution to the OH stretching absorption band profile in pressurized water vapour

摘要

The present paper considers the density effect on the water vapour absorption profile in the OH stretch range. The density evolution of the water vapour OH fundamental band shape is interpreted in terms of the monomer-dimer equilibrium. In contrast to previous works we adopt experimental values for the frequencies and IR intensities of the dimer vibrations in the vicinity of 3m. This made it possible to reduce the number of unknown parameters required in the course of our spectral fit.