ICCAS OpenIR
A new formulation of the Lindemann mechanism of unimolecular reactions
Qian, RY
2003-12-01
Source PublicationCHINESE JOURNAL OF CHEMISTRY
ISSN1001-604X
Volume21Issue:12Pages:1562-1564
AbstractA new formulation of the Lindemann mechanism of unimolecular reactions in gaseous phase is presented, without the use of steady state hypothesis. It is hereby shown that the nature of applicability of steady state hypothesis in the regime of high reactant gas pressure is different from that in the regime of low gas pressure. In the former case it is an equilibrium approximation, while in the latter case it is a highly reactive intermediate approximation in no connection with a steady state. Furthermore for the latter case it is shown that in the classical formulation of Lindemann mechanism the use of steady state hypothesis is an ad hoc assumption. A highly reactive intermediate in the sense that its concentration is very small during the whole course of reaction is a necessary condition for the applicability of very reactive intermediate approximation. When the two distinctive nature of the applicability of steady state hypothesis is mixed-up, wrong or useless conclusion may be arrived at. The only possible case of realizing a true steady state in a complex reaction is pointed out.
KeywordChemical Kinetics Unimolecular Reaction Lindemann Mechanism Steady State Hypothesis
Indexed BySCI
Language英语
WOS IDWOS:000220088900008
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79694
Collection中国科学院化学研究所
Corresponding AuthorQian, RY
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Qian, RY. A new formulation of the Lindemann mechanism of unimolecular reactions[J]. CHINESE JOURNAL OF CHEMISTRY,2003,21(12):1562-1564.
APA Qian, RY.(2003).A new formulation of the Lindemann mechanism of unimolecular reactions.CHINESE JOURNAL OF CHEMISTRY,21(12),1562-1564.
MLA Qian, RY."A new formulation of the Lindemann mechanism of unimolecular reactions".CHINESE JOURNAL OF CHEMISTRY 21.12(2003):1562-1564.
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