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Foreign‐gas pressure broadening of the pure rotational Raman spectrum of H 2
Author(s) -
Dayan E.,
Viennot J. P.
Publication year - 1980
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250090513
Subject(s) - quadrupole , raman spectroscopy , chemistry , intermolecular force , anisotropy , hydrogen , atomic physics , rotational spectrum , bar (unit) , molecule , rotational transition , analytical chemistry (journal) , rotational spectroscopy , physics , optics , angular momentum , organic chemistry , chromatography , meteorology , quantum mechanics
Measurements of the width of the rotational Raman line, at 595 cm −1 , of hydrogen in mixtures with N 2 , C 2 H 4 and CO 2 are reported at a series of perturbing gas pressures, up to 400 bar. The broadening is found to be characteristic of the foreign gas and is interpreted in term of the quadrupole–quadrupole interaction between hydrogen and the perturing molecule. It is shown that the quadrupole–quadrupole contribution is the dominant part of the anisotropic intermolecular potential.