12 January 2004 Global analysis of chloromethane: determinability of ground state constants
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Proceedings Volume 5311, 14th Symposium on High-Resolution Molecular Spectroscopy; (2004); doi: 10.1117/12.545197
Event: 14th Symposium on High-Resolution Molecular Spectroscopy, 2003, Krasnoyarsk, Russian Federation
Abstract
As part of a global analyis of the infrared spectrum of chloromethane, the region of the fifth polyad involving the upper states of seven interacting bands 2υ6, υ23, υ35, 3υ3, υ26, υ56, 2υ36, from 1900 to 2600 cm-1 has been re-investigated. More than 20 000 transitions for each isotopomer 12CH335Cl and 12CH337Cl have been assigned and fitted with a standard deviation better than 4 10-4 cm-1 close to the experimental precision. The present paper is focussed on the determination of the ground state constants of 12CH337Cl by exploiting in a global theoretical model perturbation-allowed transitions already observed for 12CH335Cl by Di Lauro and Alamichel (J. Mol. Spectrosc. 81, 390-412 (1980)).
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Andrei V. Nikitin, Jean-Paul Champion, Hans Burger, "Global analysis of chloromethane: determinability of ground state constants", Proc. SPIE 5311, 14th Symposium on High-Resolution Molecular Spectroscopy, (12 January 2004); doi: 10.1117/12.545197; http://dx.doi.org/10.1117/12.545197
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KEYWORDS
Chlorine

Molecules

Molecular spectroscopy

Statistical analysis

FT-IR spectroscopy

Information operations

Infrared radiation

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