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The determination of the populations of vibrational levels of molecules from electron diffraction data

โœ Scribed by A.Ya. Nasarenko; V.P. Spiridonov; B.S. Butayev

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
315 KB
Volume
103
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The appliutlon of modern gas-phase electron diffraction for directly determining the populations of +brational levels is demonstrated for the molecule 12_ It is conduded that, under the conditions of the conventional electron diffraction experiment, a thermal equilibrium can reliably be assumed for a gas jet but at a temperature which can be markedly lower than that of the nozzle. The diffraction rest&s favour a BolQmann distribution of molecules over the vibrational states.

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Determination of vibrational level spacings of van der waals molecules from the Lennard-Jones potential
โœ Hyung Kyu Shin ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 518 KB

An approximate cxprcssion for the eigenvalucs for van dcr Waals molecules by USC of the Lennard-Jones (I 2-6) potcntial in the WKB approximation is presented. The expression is applied to the rare. pas molecules Arz, Kr2, and XQ by fitting the potential function to the observed potential parameters.