Vibrational relaxation of CF4 and CH4 and energy transfer between these gases and CO
- 1 January 1979
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 75, 1341-1350
- https://doi.org/10.1039/f29797501341
Abstract
Measurements have been made of the rates of vibrational relaxation of CF4 and of CH4 in the temperature range 400–700 K using a shock tube. Below 600 K the equilibrium population of CO in the (v= 1) state is very small and it is possible to measure the rates of the (VT) excitation of CF4 and of CH4 by CO. Rate constants have been determined for these processes in the temperature range 400–450 K. Above temperatures of 750 K it is possible to measure the rates for the vibrational excitation of CO by vibrationally excited CF4, or by vibrationally excited CH4. Data are given for these processes in the temperature range 750–1500 K and comparisons are made with laser fluorescence data at lower temperatures on the vibrational deactivation of CO by CF4 and by CH4.Keywords
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