Rovibrational momentum densities of diatomic molecules in the rigid rotor-harmonic oscillator approximation |
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| Affiliation: | 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, People''s Republic of China;2. School of Resources and Environment Engineering, Southwest Petroleum University, Chengdu 610500, People''s Republic of China;3. Engineering Technology Research Institute, PetroChina Southwest Oil and Gas Field Company, Guanghan, Sichuan 618300, People''s Republic of China;1. CEITEC IPM, Institute of Physics of Materials, AS CR, Žižkova 22, 616 62 Brno, Czech Republic;2. Faculty of the Environment, University of Jan Evangelista Purkyně, Králova Výšina 7, 400 96 Ústí nad Labem, Czech Republic;3. Regional Materials Science and Technology Centre, VŠB – Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic;4. Department of Physics, VŠB – Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic |
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| Abstract: | The rigid rotor-harmonic oscillator model in the momentum representation is used to examine the rovibrational momentum density of a diatomic molecule. The effects on this function of rotational and vibrational excitation, thermal averaging, and nuclear spin statistics are exhibited in calculations on N2 and thehydrogen halides, and a brief comparison with electron momentum densities is made. |
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