کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9667552 | 863757 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of hyperplanar transition states: Application to 2D test problems
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The implementation of the WKE two step procedure for simulating slow, thermal transitions involving (1) a transition state theory approximation and (2) dynamical trajectories starting from the transition state is discussed, in particular the optimization of hyperplanar representations of the transition state dividing surface. A test problem involving a twisted reaction path is analyzed, and it is shown that the optimal hyperplanar transition state rotates abruptly from lying along the potential energy ridge at low temperature to an entropy dominated orientation at high temperature. The construction of more complex dividing surfaces using a set of intersecting hyperplanes is also illustrated. Finally, the use of the WKE procedure to enable long time scale simulations of systems undergoing activated, rare events is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Physics Communications - Volume 169, Issues 1â3, 1 July 2005, Pages 284-288
Journal: Computer Physics Communications - Volume 169, Issues 1â3, 1 July 2005, Pages 284-288
نویسندگان
Thomas Bligaard, Hannes Jónsson,