Temperature dependence of resonant isotopic vibrational energy transfer in H35Cl–H37 Cl
- 1 June 1979
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 70 (11) , 4916-4923
- https://doi.org/10.1063/1.437380
Abstract
The resonant vibration‐to‐vibration energy transfer process, H35Cl(v=1)+H37Cl(v=0) ?H35Cl(v=0) +H37Cl(v=1)+ΔE=2.1 cm−1 has been investigated over the temperature range 192–632 K by use of an isotopically selective transverse discharge chemical laser and infrared fluorescence techniques. The transfer probability shows a temperature dependence of PVV∼T−1.6 over the range studied. This dependence is similar to those observed for a number of other near‐resonant processes, but differs from current theoretical predictions for resonant vibrational energy transfer. It is shown that a model based on a statistical distribution of rotational states resulting after a long‐lived collision is useful in understanding the parameters which must be important in resonant vibrational energy transfer.Keywords
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