Analysis of the Acting Forces in a Theory of Catalysis and Mechanochemistry.
Analysis of the Acting Forces in a Theory of Catalysis and Mechanochemistry.
复制标题
催化和机械化学理论中的作用力分析。
DOI:
--
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发表时间:
2017
影响因子:
2.9
通讯作者:
J. Ribas‐Ariño
中科院分区:
文献类型:
--
作者:
W. Quapp;J. M. Bofill;J. Ribas‐Ariño
The theoretical description of a chemical process resulting from the application of mechanical or catalytical stress to a molecule is performed by the generation of an effective potential energy surface (PES). Changes for minima and saddle points by the stress are described by Newton trajectories (NTs) on the original PES. From the analysis of the acting forces we postulate the existence of pulling corridors built by families of NTs that connect the same stationary points. For different exit saddles of different height we discuss the corresponding pulling corridors; mainly by simple two-dimensional surface models. If there are different exit saddles then there can exist saddles of index two, at least, between. Then the case that a full pulling corridor crosses a saddle of index two is the normal case. It leads to an intrinsic hysteresis of such pullings for the forward or the backward reaction. Assuming such relations we can explain some results in the literature. A new finding is the existence of roundabout corridors that can switch between different saddle points by a reversion of the direction. The findings concern the mechanochemistry of molecular systems under a mechanical load as well as the electrostatic force and can be extended to catalytic and enzymatic accelerated reactions. The basic and ground ansatz includes both kinds of forces in a natural way without an extra modification.
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影响因子:
15
作者:
Ong, Mitchell T.;Leiding, Jeff;Martinez, Todd J.
通讯作者:
Martinez, Todd J.
影响因子:
16.6
作者:
Ribas-Arino, Jordi;Shiga, Motoyuki;Marx, Dominik
通讯作者:
Marx, Dominik
影响因子:
5.5
作者:
M. Krupicka;D. Marx
通讯作者:
D. Marx
影响因子:
15
作者:
Ribas-Arino, Jordi;Shiga, Motoyuki;Marx, Dominik
通讯作者:
Marx, Dominik
DOI:
10.1073/pnas.0401870101
发表时间:
2004-08-03
影响因子:
11.1
作者:
Evans, E;Leung, A;Zhu, C
通讯作者:
Zhu, C