Do highly excited reactive polyatomic molecules behave ergodically

Journal Article · Tue May 01 04:00:00 EDT 1979 · Acc. Chem. Res.; (United States)

DOI:https://doi.org/10.1021/ar50137a002· OSTI ID:6013155

Oref, I ^[1]; Rabinovitch, B S

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1. Technion-Israel Inst. of Tech., Haifa, Israel

Controversy has been generated on the subject of intramolecular vibrational relaxation in reacting molecules. Some background information for unimolecular rate formulations and experimental studies is outlined. Models for unimolecular dissociation are discussed. There are essentially two methods for producing excited species: (1) Boltzmann thermal systems and (2) external sources, such as chemical activation, multiphoton excitation, molecular beams, single photon excitation, and photosensitized reaction. The hot molecules are subject to collisional intervention unless collision-free conditions are maintained. Photophysical experiments are another potential source of information on the internal energy distribution in excited electronic states of polyatomic molecules. The answer to the question appears to be, Yes. 113 references, 3 figures.

• OSTI ID: 6013155
• Journal Information: Acc. Chem. Res.; (United States), Journal Name: Acc. Chem. Res.; (United States) Vol. 12:5; ISSN ACHRE
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
BEAMS
BOLTZMANN STATISTICS
CHEMICAL ACTIVATION
CHEMICAL REACTION KINETICS
CHEMISTRY
DISSOCIATION
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
ENERGY SPECTRA
EXCITED STATES
KINETICS
LASER RADIATION
MATHEMATICAL MODELS
MECHANICS
MOLECULAR BEAMS
MOLECULES
PHOTOCHEMISTRY
POLYATOMIC MOLECULES
RADIATIONS
REACTION KINETICS
RELAXATION
SPECTRA
STATISTICAL MECHANICS
VIBRATIONAL STATES