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Mass spectrometric direct measurements of the vibrational relaxation of hot n-butane by SF_6 and toluene in crossed molecular beams

Amorebieta, V. T. and Colussi, A. J. (1985) Mass spectrometric direct measurements of the vibrational relaxation of hot n-butane by SF_6 and toluene in crossed molecular beams. Journal of Physical Chemistry, 89 (22). pp. 4664-4667. ISSN 0022-3654 . https://resolver.caltech.edu/CaltechAUTHORS:20150623-154811364

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Abstract

Vibrational temperatures of hot n-butane beams before (T_(vi)) and after (T_(vf)) being deflected by nearly collinear beams of SF_6 and toluene at 300 K have been measured by mass spectrometry using low-energy electron impact ionization. For n-butane initially at 605 K a net decrease of ΔT_v = -21 ± 7 K was observed corresponding to (ΔE_v) = -230 ± 75 cm^(-1) and to a vibrational accommodation coefficient α_v = 0.18 relative to collisions in which the pool of oscillators becomes thermalized.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/j100268a002DOIArticle
http://pubs.acs.org/doi/abs/10.1021/j100268a002PublisherArticle
ORCID:
AuthorORCID
Colussi, A. J.0000-0002-3400-4101
Alternate Title:Mass spectrometric direct measurements of the vibrational relaxation of hot n-butane by sulfur hexafluoride and toluene in crossed molecular beams
Additional Information:© 1985 American Chemical Society. (Received: May 30, 1985) Generous support from CIC of Argentina is gratefully acknowledged.
Funders:
Funding AgencyGrant Number
Comision de Investigaciones Cientificas de la Provincia de Buenos AiresUNSPECIFIED
Issue or Number:22
Record Number:CaltechAUTHORS:20150623-154811364
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150623-154811364
Official Citation:Mass spectrometric direct measurements of the vibrational relaxation of hot n-butane by sulfur hexafluoride and toluene in crossed molecular beams V. T. Amorebieta and A. J. Colussi The Journal of Physical Chemistry 1985 89 (22), 4664-4667 DOI: 10.1021/j100268a002
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58534
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:24 Jun 2015 21:24
Last Modified:03 Oct 2019 08:37

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