Vibrational energy transfer from chemically activated 1,4‐cyclohexadiene
作者:
S. Walter Orchard,
Jennifer Ramsden,
期刊:
International Journal of Chemical Kinetics
(WILEY Available online 1982)
卷期:
Volume 14,
issue 1
页码: 43-53
ISSN:0538-8066
年代: 1982
DOI:10.1002/kin.550140106
出版商: John Wiley&Sons, Inc.
数据来源: WILEY
摘要:
AbstractThe thermal isomerization ofcis,anti,cis‐tricyclo[3.1.0.02,4] hexane was used to produce highly vibrationally excited 1,4‐cyclohexadiene. The competition between unimolecular decomposition of the energized diene (to benzene and hydrogen) and collisional stabilization was studied using the parent compound, SF6, CO2, N2, and He as quenching gases. Quenching efficiencies decreased in the order given above. By applying RRKM theory to the isomerization and decomposition reactions, it was possible to calculate the step size in a stepladder model of the deactivation of cyclohexadiene. The step sizes 〈ΔE〉 deduced (at 528 K and in units of kJ/mol) were: parent compound and SF6, 7; CO2, 5; N2, 4; He, 2. The study confirmed the utility of this unimolecular chemical activation system for energy transfer
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