Theoretical study of the collision-induced fundamental absorption spectra of O2-O2 pairs for temperatures between 193 and 273 K.

Details Theoretical study of the collision-induced fundamental absorption spectra of O2-O2 pairs for temperatures between 193 and 273 K. Theoretical study of the collision-induced fundamental absorption spectra of O2-O2 pairs for temperatures between 193 and 273 K.

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jqsrt..64...87m&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 64, issue 1, pp. 87-107

Statistics

Computation

12

Molecular Oxygen: Absorption Spectra, Molecular Oxygen: Molecular Processes

Scientific paper

A theoretical analysis of the collision-induced fundamental absorption spectra of O2-O2 pairs is presented for temperatures between 193 and 273 K. Most of the absorption arises from the long-range quadrupole and hexadecapole-induced dipole mechanisms for which accurate matrix elements are available from various other experimental measurements or from ab initio calculations. The line shape used is that obtained from quantum computations of the far infrared collision-induced absorption of N2 modified to include dips resulting from the effects of intercollisional interference. Several refinements, including contributions from back-reaction and short-range induced-dipole moments, can improve the agreement in certain spectral regions but do not lead to significant improvement in the global fits to the experimental data.

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