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This article is cited in 4 scientific papers (total in 4 papers)
Laser applications and other topics in quantum electronics
Free and binary rotation of polyatomic molecules
V. K. Konyukhov Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
Abstract:
A modification of the quantum-mechanical theory of rotation of polyatomic molecules (binary rotation) is proposed, which is based on the algebra and representations of the SO(4) group and allows the introduction of the concept of parity, as in atomic spectroscopy. It is shown that, if an asymmetric top molecule performing binary rotation finds itself in a spatially inhomogeneous electric field, its rotational levels acquire the additional energy due to the quadrupole moment. The existence of the rotational states of polyatomic molecules that cannot transfer to the free rotation state is predicted. In particular, the spin isomers of a water molecule, which corresponds to such states, can have different absolute values of the adsorption energy due to the quadrupole interaction of the molecule with a surface. The difference in the adsorption energies allows one to explain qualitatively the behaviour of the ortho- and para-molecules of water upon their adsorption on the surface of solids in accordance with experimental data.
Received: 29.10.2002 Revised: 17.07.2003
Citation:
V. K. Konyukhov, “Free and binary rotation of polyatomic molecules”, Kvantovaya Elektronika, 33:11 (2003), 1022–1028 [Quantum Electron., 33:11 (2003), 1022–1028]
Linking options:
https://www.mathnet.ru/eng/qe2544 https://www.mathnet.ru/eng/qe/v33/i11/p1022
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Abstract page: | 179 | Full-text PDF : | 106 | First page: | 1 |
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