Computational Study on Reaction Mechanisms and Kinetics of RNCN (R = H, F, Cl, Br, CH3) Radicals with NO

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题名:	Computational Study on Reaction Mechanisms and Kinetics of RNCN (R = H, F, Cl, Br, CH3) Radicals with NO
作者:	Chen, HL (Chen, Hui-Lung) Wu, SK (Wu, Sheng-ke) Lu, YH (Lu, Yu-Huan)
贡献者:	Dept Chem
关键词:	DENSITY-FUNCTIONAL THERMOCHEMISTRY PRODUCT BRANCHING RATIOS AB-INITIO POTENTIAL-ENERGY SURFACE TRANSITION-STATES NITRIC-OXIDE ELECTRON-DENSITY REACTION COORDINATE CH+N-2 REACTION DRIVING-FORCE
日期:	2012-03
上传时间:	2013-02-22 11:34:51 (UTC+8)
摘要:	We carried out a computational study of radical reactions of RNCN (R = H, F, Cl, Br, CH3) + NO to investigate how the substitution can influence their corresponding energy barriers and rate coefficients. The preferable reactive sites of RNCN radicals with various substituents are calculated by employing the Fukui functions and hard-and-soft acid-and-base theory, which were generally proved to be successful in the prediction and interpretation of regioselectivity in various types of electrophilic and nucleophilic reactions. Our calculated results dearly show that if the substituted RNCN radical has electron-donating substituent (for R = CH3), its corresponding barrier heights for transition states will be substantially decreased. The possible explanations of the observed increase and/or decrease in the energy barriers for the varied substituted RNCN radicals are also analyzed in this article.
關聯:	JOURNAL OF PHYSICAL CHEMISTRY A 卷: 116 期: 12 頁數: 3267-3273
显示于类别:	[化學系所] 期刊論文

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