Rotational energy transfer in small polyatomic molecules

Journal Article · Sun Dec 31 04:00:00 EST 1995 · Advances in Atomic, Molecular, and Optical Physics

DOI:https://doi.org/10.1016/S1049-250X(08)60166-4· OSTI ID:443542

Everitt, H O ^[1]; De Lucia, F C ^[2]

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1. Army Research Office, Research Triangle Park, NC (United States)
2. Ohio State Univ., Columbus, OH (United States)

Significant progress has been made in the study of state-specific collision-induced rotational energy transfer (RET) in polyatomic molecules since the early studies of Wilson and co-workers, Unland and Flygare, and Oka. In an earlier contribution to this series, Oka reviewed the general issue of RET and summarized the field to that date. Additionally, there has been extensive work on simpler collisions, especially those between homonuclear diatomic molecules and atoms. This work, which explored the relationships among formal scattering theories, semiempirical scaling and fitting rules, and modern state-resolved experimental results, provides a useful basis for the development of an understanding of the more complex RET problem of polyatomic molecules. Because the subject of RET has become very broad, we have chosen to focus on incoherent state-to-state rates which result from collisions between like molecules and on the relationship of these rates to fundamental molecular parameters. In general, we have excluded discussions of experimental methods, collisions with foreign gases, velocity subset effects, nonlinear processes, polarization, and coherent effects. 135 refs., 18 figs., 5 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 443542
• Journal Information: Advances in Atomic, Molecular, and Optical Physics, Journal Name: Advances in Atomic, Molecular, and Optical Physics Vol. 35; ISSN AAMPE9; ISSN 1049-250X
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CROSS SECTIONS
ENERGY TRANSFER
MOLECULE-MOLECULE COLLISIONS
ROTATIONAL STATES
VIBRATIONAL STATES