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Direct ab initio molecular dynamics study on a microsolvated SN2 reaction of OH-(H2O) with CH3Cl

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Title: Direct ab initio molecular dynamics study on a microsolvated SN2 reaction of OH-(H2O) with CH3Cl
Authors: Tachikawa, Hiroto Browse this author →KAKEN DB
Issue Date: 7-Oct-2006
Publisher: American Institute of Physics
Journal Title: The Journal of Chemical Physics
Volume: 125
Issue: 133119
Publisher DOI: 10.1063/1.2229208
PMID: 17029445
Abstract: Reaction dynamics for a microsolvated SN2 reaction OH–(H2O)+CH3Cl have been investigated by means of the direct ab initio molecular dynamics method. The relative center-of-mass collision energies were chosen as 10, 15, and 25 kcal/mol. Three reaction channels were found as products. These are (1) a channel leading to complete dissociation (the products are CH3OH+Cl–+H2O: denoted by channel I), (2) a solvation channel (the products are Cl–(H2O)+CH3OH: channel II), and (3) a complex formation channel (the products are CH3OHH2O+Cl–: channel III). The branching ratios for the three channels were drastically changed as a function of center-of-mass collision energy. The ratio of complete dissociation channel (channel I) increased with increasing collision energy, whereas that of channel III decreased. The solvation channel (channel II) was minor at all collision energies. The selectivity of the reaction channels and the mechanism are discussed on the basis of the theoretical results. ©2006 American Institute of Physics
Rights: Copyright © 2006 American Institute of Physics
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 田地川 浩人

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