Calculation of the spectral transition frequencies of matrix-isolated hydrogen, deuterium, and hydrogen deuteride impurities in solid krypton and xenon under pressure

Chandrasekharan, V. ; Chergui, M. ; Silvi, B. ; Etters, R. D. (1987) Calculation of the spectral transition frequencies of matrix-isolated hydrogen, deuterium, and hydrogen deuteride impurities in solid krypton and xenon under pressure Journal of Physical Chemistry, 91 (6). pp. 1623-1628. ISSN 0022-3654

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Official URL: http://pubs.acs.org/doi/abs/10.1021/j100290a066

Related URL: http://dx.doi.org/10.1021/j100290a066

Abstract

The vibrational, rotational, and vibrational-rotational spectra of dil. H2, D2, and HD matrix-isolated in solid Kr and Xe were calculated at zero temperature and at pressures 0 ≤ P ≤ 570 kbar. The impurity local mode frequencies were calculated vs. pressure. The pure vibrational and rotational-vibrational transition frequencies are strongly red shifted in the solid at P = 0 with respect to their gas-phase values, and the pure rotational transitions are weakly red shifted. The agreement with Raman and IR results is generally but not uniformly good. As the pressure is increased, the transition frequencies of all the modes in solid Xe and some in solid Kr red shift with respect to their values in the solid at P = 0. At higher pressures all modes are strongly blueshifted. The local mode frequencies strongly blueshift for all P > 0.

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