Isotope Effect in Gas-Surface Vibrational Energy Transfer. Cyclopropane and Cyclopropane-d6 Isomerization by the VEM Technique

The study of varying molecular structure on the efficiency of vibrational energy transfer between molecules and a hot surface has been extended to the pair, cyclopropane/cyclopropane-d6. The latter is less efficient in energy loss, as corresponds to the greater vibrational eigenstate density. Conver...

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Bibliographic Details
Main Authors: Yuan,W, Tosa,R, Chao,K -J, Rabinovitch,B S
Format: Report
Language:English
Subjects:
Atomic and Molecular Physics and Spectroscopy
CYCLOPROPANES
DENSITY
ENERGY TRANSFER
GASES
HIGH TEMPERATURE
ISOMERIZATION
ISOTOPE EFFECT
Mechanics
MOLECULAR STRUCTURE
PROBABILITY
REACTION KINETICS
RELAXATION
SECONDARY
STATISTICAL ANALYSIS
SURFACES
TRANSITIONS
Unimolecular reactions
Vibrational energy transfer
VIBRATIONAL SPECTRA
WUNR092549
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Summary:The study of varying molecular structure on the efficiency of vibrational energy transfer between molecules and a hot surface has been extended to the pair, cyclopropane/cyclopropane-d6. The latter is less efficient in energy loss, as corresponds to the greater vibrational eigenstate density. Conversely, the probability of energy up-transitions is enhanced; in thermal low pressure unimolecular reactions this corresponds to the inverse statistical weight secondary isotope effect. (Author)