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Steric asymmetry in rotationally inelastic state-resolved NOAr collisions

✍ Scribed by J.J. van Leuken; J. Bulthuis; S. Stolte; J.G. Snijders


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
487 KB
Volume
260
Category
Article
ISSN
0009-2614

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✦ Synopsis


The first direct experimental evidence is reported of large orientation (head-tail) effects in rotationally inelastic collisions, lfor the specific case of NO and Ar. NO is selected in the 2II~/2 j = 2 state and oriented in an electric field. The steric effect, measured for collisions to three distinct final rotational states, appears to depend on the j' value and the parity of the final state. This behaviour also follows from quantum-mechanical scattering calculations, but the calculated values do not coincide with the corresponding experimental ones.