Vol. 15, issue 11, article # 2

pdf Starikov V. I., Protasevich A. E. Vibrational-rotational polarizability operator of asymmetric-top molecules. Effect on the shift and broadening of H2O molecular spectral lines. // Atmospheric and oceanic optics. 2002. V. 15. No. 11. P. 867-873.
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A vibrational-rotational operator for the polarizability tensor of asymmetric-top molecules has been obtained by the methods of contact transformations. It has been shown that the rotational transformation gives no contributions being diagonal in the basis of symmetric-top rotational functions. The effect of the rotational dependence of the polarizability operator on the atomic argon pressure induced shift and broadening of rotational-vibrational spectral lines of the v2 band of the H2O molecule has been studied.