Title
Nontotally Symmetric Trifurcation Of An S(N)2 Reaction Pathway
Abstract
A new type of reaction pathway which involves a nontotally symmetric trifurcation was found and investigated for a typical S(N)2-type reaction, NC-+CH3X NCCH3+X- (X=F, Cl). A nontotally symmetric valley-ridge inflection (VRI) point was located along the C-3v reaction path. For X=F, the minimum energy path (MEP) starting from the transition state (TS) leads to a second-order saddle point with C-3v symmetry, which connects three product minima of C-s symmetry. For X=Cl, four product minima have been observed, of which three belong to C-s symmetry and one to C-3v symmetry. The branching path from the VRI point to the lower symmetry minima was determined by a linear interpolation technique. The branching mechanism is discussed based on the reaction path curvature and net atomic charges, and the possibility of a nonotally symmetric n-furcation is discussed. (c) 2015 Wiley Periodicals, Inc.
Year
DOI
Venue
2016
10.1002/jcc.24241
JOURNAL OF COMPUTATIONAL CHEMISTRY
Keywords
Field
DocType
Bifurcation, valley-ridge inflection, minimum energy path, n-furcation, projected Hessian matrices
SN2 reaction,Curvature,Saddle point,Computational chemistry,Maxima and minima,Linear interpolation,Mathematics,Branching (version control),Bifurcation
Journal
Volume
Issue
ISSN
37
5
0192-8651
Citations 
PageRank 
References 
0
0.34
0
Authors
6
Name
Order
Citations
PageRank
Yu Harabuchi111.41
Yuriko Ono210.73
Satoshi Maeda373.08
Tetsuya Taketsugu464.74
Kristopher Keipert521.06
Mark S. Gordon628325.73