A semiclassical reactive flux method for the calculation of condensed phase activated rate constants |
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Authors: | Diane E Sagnella Jianshu Cao Gregory A Voth |
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Institution: | Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA |
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Abstract: | A semi classical reactive flux algorithm for calculating thermally activated rate constants is presented which is based on a semi-classical transition state theory due to Chapman, Garrett and Miller J. Chem. Phys. 63 (1975) 2710]. This reactive flux technique, when combined with the semiclassical TST, enables one to describe dynamical recrossings of the transition state on the same footing as tunneling effects. Most importantly, the method is readily applied to nonlinear multidimensional systems over a wide range of temperatures. It will be shown that the method works very well for a variety of existing models. |
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