Collisions between sodium atoms and nitrogen molecules: rotational excitation and fine-structure-changing collisions
- 14 April 1978
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 11 (7) , 1249-1257
- https://doi.org/10.1088/0022-3700/11/7/022
Abstract
The formalism describing low-energy collisions between a linear molecule and an atom with fine-structure levels is set forth. It is shown that the resulting equations are rendered more tractable by making either the fixed-nucleus or averaged-field approximations. These are usually complementary approximations, but it is shown by physical arguments and numerical calculation that they are in good agreement for Na-N2 collisions. Using the surfaces calculated in an earlier paper, rotational excitation and fine-structure-changing cross sections for Na(2S, 2P)-N2(j) collisions at energies between 0.004 and 0.05 eV are presented, the molecule being in its ground vibrational state. The results are in agreement with the single available measurement.Keywords
This publication has 16 references indexed in Scilit:
- Electronic to vibrational-rotational energy transfer in collisions of Na (3 2P) with simple moleculesChemical Physics Letters, 1977
- Differential cross sections for inelastic heavy-particle scatteringJournal of Physics B: Atomic and Molecular Physics, 1976
- Collision broadening and relaxation of the resonance lines of lithium and sodium in helium gasProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1975
- Collisions between sodium atoms and nitrogen moleculesChemical Physics Letters, 1975
- The rotational excitation of carbon monoxide by hydrogen atom impactProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1975
- Coupled-states approach for elastic and for rotationally and vibrationally inelastic atom–molecule collisionsThe Journal of Chemical Physics, 1975
- Coupled channel study of rotational excitation of H2 by Li+ collisionsThe Journal of Chemical Physics, 1973
- The temperature dependence of the quenching of Na-D-doublet by N2 and H2O in flames of 1500–2500 KJournal of Quantitative Spectroscopy and Radiative Transfer, 1972
- Structural features of the S-matrix for the rotational excitation of homonuclear diatomic molecules by atom impact: close-coupled versus approximate computationsChemical Physics Letters, 1967
- The theory of scattering by a rigid rotatorProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1960