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Rotational energy transfer in collisions between CO and Ar at temperatures from 293 to 30 K

Mertens, Laura A. and Labiad, Hamza and Denis-Alpizar, Otoniel and Fournier, Martin and Carty, David and Le Picard, Sébastien D. and Stoecklin, Thierry and Sims, Ian R. (2017) Rotational energy transfer in collisions between CO and Ar at temperatures from 293 to 30 K. Chemical Physics Letters, 683 . pp. 521-528. ISSN 0009-2614.

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Experimental measurements and theoretical calculations are reported for rotational energy transfer in the Ar-CO system. Experiments were performed in cold uniform supersonic flows of Ar, using an infrared – vacuum ultraviolet double resonance technique to measure absolute state-to-state rate constants and total relaxation cross sections for rotational energy transfer within the (v = 2) vibrational state of CO in collision with Ar at temperatures from 30.5 to 293 K. Close-coupling calculations were also performed using a recent potential energy surface (Sumiyoshi and Endo, 2015). Very good agreement is obtained between measured and calculated values.

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Additional Information:© 2017 Elsevier B.V. Received 21 March 2017, Accepted 19 May 2017, Available online 25 May 2017. The authors acknowledge financial support from the French Agence Nationale de la Recherche (ANR-HYDRIDES, contract ANR-12-BS05-0011-01). LM thanks Rennes Metropole for a mobility grant, and the Office for Science and Technology of the Embassy of France in the United States for a Chateaubriand Fellowship. DC thanks the Université de Rennes 1 for the award of a visiting professor position during the period that this work was carried out.
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Agence Nationale pour la Recherche (ANR)ANR-12-BS05-0011-01
Rennes MetropoleUNSPECIFIED
Embassy of FranceUNSPECIFIED
Record Number:CaltechAUTHORS:20170526-075324680
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Official Citation:Laura A. Mertens, Hamza Labiad, Otoniel Denis-Alpizar, Martin Fournier, David Carty, Sébastien D. Le Picard, Thierry Stoecklin, Ian R. Sims, Rotational energy transfer in collisions between CO and Ar at temperatures from 293 to 30K, Chemical Physics Letters, Volume 683, 2017, Pages 521-528, ISSN 0009-2614, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:77790
Deposited By: Tony Diaz
Deposited On:26 May 2017 16:48
Last Modified:03 Mar 2020 23:32

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