Broadening of CH3F in presence of Stark fields. II. Collisional coupling between the Stark components
Anno: 1999
Autori: Lemaire V., Dore L., Cazzoli G., Buffa G., Tarrini O., Baldanzi E., Belli S.
Affiliazione autori: Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy; Istituto Nazionale Fisica della Materia Pisa
Abstract: The collisional line shape of methyl fluoride rotational transitions J,K=2,2–>3,2 and 5,5–>6,5 is observed under the effect of a static electric field. The collisional coupling between partially overlapping Stark components is studied under two particularly favorable conditions: first, the degree of overlapping can be set by both the electric field and the pressure, second, we have a calculated collisional relaxation matrix checked on both well isolated and completely unresolved Stark components. This allows us to obtain better insight into the collisional coupling effect and to show definitely that this effect explains the difference between collisional linewidths of the CH3F rotational transitions and of their Stark components. (C) 1999 American Institute of Physics. [S0021-9606(99)01119-8].
Giornale/Rivista: JOURNAL OF CHEMICAL PHYSICS
Volume: 110 (19) Da Pagina: 9418 A: 9425
Parole chiavi: collisional coupling; pressure broadening; Stark effect; molecules; DOI: 10.1063/1.478906Citazioni: 8dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-05Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui