Chemical reaction rate coefficients from ring polymer molecular dynamics: Theory and practical applications

YV Suleimanov, FJ Aoiz, H Guo - The Journal of Physical …, 2016 - ACS Publications
This Feature Article presents an overview of the current status of ring polymer molecular
dynamics (RPMD) rate theory. We first analyze the RPMD approach and its connection to …

[HTML][HTML] Kinetic isotope effects and how to describe them

K Karandashev, ZH Xu, M Meuwly, J Vaníček… - Structural …, 2017 - pubs.aip.org
We review several methods for computing kinetic isotope effects in chemical reactions
including semiclassical and quantum instanton theory. These methods describe both the …

[HTML][HTML] Communication: An accurate full 15 dimensional permutationally invariant potential energy surface for the OH+ CH4→ H2O+ CH3 reaction

J Li, H Guo - The Journal of Chemical Physics, 2015 - pubs.aip.org
A globally accurate full-dimensional potential energy surface (PES) for the OH+ CH 4→ H 2
O+ CH 3 reaction is developed using the permutation invariant polynomial-neural network …

[HTML][HTML] Communication: Full dimensional quantum rate coefficients and kinetic isotope effects from ring polymer molecular dynamics for a seven-atom reaction OH+ …

JW Allen, WH Green, Y Li, H Guo… - The Journal of Chemical …, 2013 - pubs.aip.org
The kinetic isotope effect (KIE) of the seven-atom reactions OH+ CH 4→ CH 3+ H 2 O and
OH+ CD 4→ CD 3+ HDO over the temperature range 200–1000 K is investigated using ring …

Deformed transition‐state theory: Deviation from A rrhenius behavior and application to bimolecular hydrogen transfer reaction rates in the tunneling regime

VH Carvalho‐Silva, V Aquilanti… - Journal of …, 2017 - Wiley Online Library
A formulation is presented for the application of tools from quantum chemistry and transition‐
state theory to phenomenologically cover cases where reaction rates deviate from Arrhenius …

New Stable and Fast Ring-Polymer Molecular Dynamics for Calculating Bimolecular Rate Coefficients with an Example of OH + CH4

X Gui, W Fan, J Sun, Y Li - Journal of Chemical Theory and …, 2022 - ACS Publications
The accurate and efficient calculation of the rate coefficients of chemical reactions is a key
issue in the research of chemical dynamics. In this work, by applying the dimension-free …

Recrossing and Tunneling in the Kinetics Study of the OH + CH4 → H2O + CH3 Reaction

YV Suleimanov, J Espinosa-Garcia - The Journal of Physical …, 2016 - ACS Publications
Thermal rate constants and several kinetic isotope effects were evaluated for the OH+ CH4
hydrogen abstraction reaction using two kinetics approaches, ring polymer molecular …

QCT dynamics study of the reaction of hydroxyl radical and methane using a new ab initio fitted full-dimensional analytical potential energy surface

J Espinosa-Garcia, JC Corchado - Theoretical Chemistry Accounts, 2015 - Springer
In the present work, we have developed a new analytical potential energy surface fitted to ab
initio data for the seven atoms OH+ CH 4→ H 2 O+ CH 3 hydrogen abstraction reaction and …

Effects of reactant rotation on the dynamics of the OH+ CH4→ H2O+ CH3 reaction: A six-dimensional study

H Song, J Li, B Jiang, M Yang, Y Lu… - The Journal of Chemical …, 2014 - pubs.aip.org
The dynamics of the hydrogen abstraction reaction between methane and hydroxyl radical is
investigated using an initial state selected time-dependent wave packet method within a six …

Comprehensive comparison of chemical kinetics mechanisms for syngas/biogas mixtures

HC Lee, AA Mohamad, LY Jiang - Energy & Fuels, 2015 - ACS Publications
The performance of the most commonly used chemical kinetics mechanisms is compared
against a large set of experimental data, accumulated for syngas mixtures diluted with other …