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Variational Transition State Theory as a Tool To Determine Kinetic Selectivity in Reactions Involving a Valley-Ridge Inflection Point.
- Source :
-
Journal of the American Chemical Society . 10/13/2004, Vol. 126 Issue 40, p13089-13094. 6p. - Publication Year :
- 2004
-
Abstract
- Variational transition state theory has been used to calculate the kinetic isotope effects affecting product ratios in the reaction between 1O2 and d6-tetramethylethylene. The minimum energy path on the potential energy surface for this process reaches a valley-ridge inflection point and then bifurcates leading to the two final products. Using canonical variational transition state theory, two distinct dynamical bottlenecks were located corresponding to the H- and the D-abstraction, respectively. The calculated KIE at 263 K turns out to be 1.126, Analogously, a H/T KIE of 1.17 at the same temperature has been found for the reaction of 1O2 with the tritiated derivative of tetramethylethylene. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00027863
- Volume :
- 126
- Issue :
- 40
- Database :
- Academic Search Index
- Journal :
- Journal of the American Chemical Society
- Publication Type :
- Academic Journal
- Accession number :
- 14799921
- Full Text :
- https://doi.org/10.1021/ja039561r