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Title: Removing the barrier to the calculation of activation energies

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4964284· OSTI ID:1329013

Approaches for directly calculating the activation energy for a chemical reaction from a simulation at a single temperature are explored with applications to both classical and quantum systems. The activation energy is obtained from a time correlation function that can be evaluated from the same molecular dynamics trajectories or quantum dynamics used to evaluate the rate constant itself and thus requires essentially no extra computational work.

Research Organization:
Univ. of Kansas, Lawrence, KS (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-05ER15708
OSTI ID:
1329013
Alternate ID(s):
OSTI ID: 1328056
Journal Information:
Journal of Chemical Physics, Vol. 145, Issue 13; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

References (22)

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T RANSITION P ATH S AMPLING : Throwing Ropes Over Rough Mountain Passes, in the Dark journal October 2002
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Cited By (5)

Removing the barrier to the calculation of activation energies: Diffusion coefficients and reorientation times in liquid water journal October 2017
Expanding the calculation of activation volumes: Self-diffusion in liquid water journal April 2018
The activation energy for water reorientation differs between IR pump-probe and NMR measurements journal October 2018
Rate constants in spatially inhomogeneous systems journal May 2019
On the temperature dependence of liquid structure journal January 2020

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