The isotropic remnant of the CO2 near-fully depolarized Raman 2ν3 overtone.

摘要: In a recent paper [M. Chrysos, I. A. Verzhbitskiy, F. Rachet, and P. Kouzov, J. Chem. Phys. 134, 044318 (2011)], we showed that, in CO2, the 2ν3 transition generates Raman line spectrum that is 98% depolarized, property agreement with general symmetry rules. Here, present an extensive analysis, experimental theoretical, of isotropic remnant this overtone. The turned out to be 45 times less intense than its anisotropic counterpart have moment 350 smaller spectrum, excellent theoretical predictions. Once measured intensity (along other data exclusively experimental) was fed back into formula moment, value for CO2 mean-polarizability asymmetric stretch derivative ∂2α¯/∂q32 returned matches best ab initio prediction better 4%. Agreement, order magnitude, found between reported herein sole prior stu...