ROTATIONAL AND VIBRATIONAL-ROTATIONAL RELAXATION IN COLLISIONS OF CO2(0110) WITH HE ATOMS

Rotational and vibrational-rotational relaxation of CO2(01 10) in collisions with He atoms is studied theoretically. Cross sections and rate coefficients have been calculated using a vibrational close-coupling, rotational infinite-order sudden method, together with an ab initio potential energy surf...

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Main Author: Clary, D
Format: Journal article
Language:English
Published: 1983
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author Clary, D
author_facet Clary, D
author_sort Clary, D
collection OXFORD
description Rotational and vibrational-rotational relaxation of CO2(01 10) in collisions with He atoms is studied theoretically. Cross sections and rate coefficients have been calculated using a vibrational close-coupling, rotational infinite-order sudden method, together with an ab initio potential energy surface. Comparisons with previous calculations and experiments on rotational relaxation in He+CO2(0001) are made. The rotational relaxation cross sections are found to be insensitive to the vibrational dependence of the He-CO2 potential. Transitions between even and odd rotational states of the (0110) level have relatively small cross sections. Interesting oscillating structures are predicted for the rotational dependence of the cross section distributions for transitions involving the (0110) level. © 1983 American Institute of Physics.
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spelling oxford-uuid:d0be4e15-da00-4ddb-91de-e5a2b6742dba2022-03-27T07:52:08ZROTATIONAL AND VIBRATIONAL-ROTATIONAL RELAXATION IN COLLISIONS OF CO2(0110) WITH HE ATOMSJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d0be4e15-da00-4ddb-91de-e5a2b6742dbaEnglishSymplectic Elements at Oxford1983Clary, DRotational and vibrational-rotational relaxation of CO2(01 10) in collisions with He atoms is studied theoretically. Cross sections and rate coefficients have been calculated using a vibrational close-coupling, rotational infinite-order sudden method, together with an ab initio potential energy surface. Comparisons with previous calculations and experiments on rotational relaxation in He+CO2(0001) are made. The rotational relaxation cross sections are found to be insensitive to the vibrational dependence of the He-CO2 potential. Transitions between even and odd rotational states of the (0110) level have relatively small cross sections. Interesting oscillating structures are predicted for the rotational dependence of the cross section distributions for transitions involving the (0110) level. © 1983 American Institute of Physics.
spellingShingle Clary, D
ROTATIONAL AND VIBRATIONAL-ROTATIONAL RELAXATION IN COLLISIONS OF CO2(0110) WITH HE ATOMS
title ROTATIONAL AND VIBRATIONAL-ROTATIONAL RELAXATION IN COLLISIONS OF CO2(0110) WITH HE ATOMS
title_full ROTATIONAL AND VIBRATIONAL-ROTATIONAL RELAXATION IN COLLISIONS OF CO2(0110) WITH HE ATOMS
title_fullStr ROTATIONAL AND VIBRATIONAL-ROTATIONAL RELAXATION IN COLLISIONS OF CO2(0110) WITH HE ATOMS
title_full_unstemmed ROTATIONAL AND VIBRATIONAL-ROTATIONAL RELAXATION IN COLLISIONS OF CO2(0110) WITH HE ATOMS
title_short ROTATIONAL AND VIBRATIONAL-ROTATIONAL RELAXATION IN COLLISIONS OF CO2(0110) WITH HE ATOMS
title_sort rotational and vibrational rotational relaxation in collisions of co2 0110 with he atoms
work_keys_str_mv AT claryd rotationalandvibrationalrotationalrelaxationincollisionsofco20110withheatoms