| Numéro |
J. Phys. Colloques
Volume 48, Numéro C7, Décembre 1987
1st International Laser M2P Conference
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|---|---|---|
| Page(s) | C7-689 - C7-689 | |
| DOI | https://doi.org/10.1051/jphyscol:19877169 | |
1st International Laser M2P Conference
J. Phys. Colloques 48 (1987) C7-689-C7-689
DOI: 10.1051/jphyscol:19877169
Laboratoire Aimé Cotton, CNRS II, F-91405 Orsay Cedex, France
J. Phys. Colloques 48 (1987) C7-689-C7-689
DOI: 10.1051/jphyscol:19877169
THE USE OF LASER TECHNIQUES TO PROBE THE ENERGETICS OF REACTION PRODUCTS THE Cs(7P) + H2 REACTION
G. RAHMAT, J. VERGÈS and R. VETTERLaboratoire Aimé Cotton, CNRS II, F-91405 Orsay Cedex, France
Abstract
The reaction of cesium atoms with hydrogen molecules is highly endoergic in the ground state (ƊH=2.7 eV) but can proceed after electronic excitation of Cs atoms to the 7P state : Cs(7P)+ H2 + CsH + H. In this case, the potential energy above threshold is drastically small : 0.0016 eV for a Cs (7P½) excitation and 0.024 eV for a Cs (7P3/2) excitation. This system at threshold is thus very attractive to study the influence upon reactivity of various parameters, if high resolution techniques are wed, both to prepare reagents and to characterize reaction products.