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Hyperfine Level Dependence of the Pressure Broadening of CH3I Rotational Transitions in the v6 = 1 Vibrational State

✍ Scribed by S. Belli; G. Buffa; A. Di Lieto; P. Minguzzi; O. Tarrini; M. Tonelli

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 74 KB
Volume: 201
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.2000.8106

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✦ Synopsis

We studied the hyperfine components of the ( J ϭ 10-9, Kl ϭ 9) rotational transition in the v 6 ϭ 1 excited vibrational state of CH 3 I, using collinear infrared and mm-wave radiations. The Doppler-free double-resonance technique allowed an accurate determination of the collisional broadening parameters for all the hyperfine components. An evident dependence on the F quantum number was observed and this result is perfectly consistent with a theoretical model allowing calculations of collisional broadening and coupling for the hyperfine components.

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