Broadening of vibrational-rotational lines of the H2S molecule by pressure of monatomic gases

Optimal sets of parameters for a model intermolecular potential that provide the best reproduction of broadening coefficients gamma for the absorption lines in the nu(2) band of the H2S molecule are determined for systems H2S-A (A = He, Ne, Ar, Kr, and Xe). For H2S-He, the potential is obtained with the temperature dependence of coefficients gamma taken into account for two rotational absorption lines 1(10) a dagger 1(01) and 2(11) a dagger 2(02). With the potentials obtained, the coefficients gamma are calculated for the nu(1) and nu(3) bands and compared with the available experimental data. There are significant discrepancies between the calculated and experimental values of gamma.