The isotropic remnant of the CO2 near-fully depolarized Raman 23 overtone

M. Chrysos, I. A. Verzhbitskiy, F. Rachet, A. P. Kouzov

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

14 Цитирования (Scopus)

Аннотация

In a recent paper [M. Chrysos, I. A. Verzhbitskiy, F. Rachet, and A. P. Kouzov, J. Chem. Phys. 134, 044318 (2011)], we showed that, in CO2, the 2ν3 transition generates a Raman line spectrum that is 98 depolarized, a property in agreement with general symmetry rules. Here, we present an extensive analysis, experimental and theoretical, of the isotropic remnant of this overtone. The isotropic spectrum turned out to be 45 times less intense than its anisotropic counterpart and to have a moment that is 350 times smaller than the moment of the anisotropic spectrum, in excellent agreement with theoretical predictions. Once the measured intensity (along with other data exclusively experimental) was fed back into the formula of the moment, a value for the CO2 mean-polarizability asymmetric stretch derivative δ2ᾱ/δq3 2 was returned that matches the best ab initio prediction to better than 4%. Agreement, in order of magnitude, was found between the intensity reported herein and that reported in the sole prior study of this overtone [G. Tejeda, B. Maté, and S. Montero, J. Chem. Phys. 103, 568 (1995)].

Язык оригиналаанглийский
Номер статьи104310
ЖурналJournal of Chemical Physics
Том134
Номер выпуска10
DOI
СостояниеОпубликовано - 14 мар 2011

Предметные области Scopus

  • Физика и астрономия (все)
  • Физическая и теоретическая химия

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