Potential energy surface for the CCl4+H→CCl3+ClH reaction: Kinetics and dynamics study

2005 ◽  
Vol 122 (13) ◽  
pp. 134315 ◽  
Author(s):  
C. Rangel ◽  
J. Espinosa-García
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Reaction Kinetics ◽  
Energy Surface ◽  
Kinetics And Dynamics

Kinetics and dynamics study of the OH + C2H6 → H2O + C2H5 reaction based on an analytical global potential energy surface

2020 ◽  
Vol 22 (26) ◽  
pp. 14796-14810 ◽  
Author(s):  
C. Rangel ◽  
M. Garcia-Chamorro ◽  
J. C. Corchado ◽  
J. Espinosa-Garcia
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Gas Phase ◽  
Energy Surface ◽  
Hydrogen Abstraction ◽  
Ethane Molecule ◽  
Abstraction Reaction ◽  
Kinetics And Dynamics ◽  
Oppenheimer Approximation ◽  
Hydrogen Abstraction Reaction

To describe the gas-phase hydrogen abstraction reaction between the hydroxyl radical and the ethane molecule, an analytical full-dimensional potential energy surface was developed within the Born–Oppenheimer approximation.

Global potential energy surface and product pair-correlated distributions for the F(2P) + SiH4 reaction. Comparison with experiments.

2022 ◽  
Author(s):  
J. Espinosa-Garcia
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Gas Phase ◽  
Energy Surface ◽  
Hydrogen Abstraction ◽  
Surface Kinetics ◽  
Abstraction Reaction ◽  
Kinetics And Dynamics ◽  
Hydrogen Abstraction Reaction ◽  
Product Pair

In this paper we study the gas-phase hydrogen abstraction reaction between fluorine atoms and silane in a three-step process: potential energy surface, kinetics and dynamics. Firstly, we developed for the...

Potential energy surface, kinetics, and dynamics study of the Cl+CH4→HCl+CH3 reaction

2006 ◽  
Vol 124 (12) ◽  
pp. 124306 ◽  
Author(s):  
Cipriano Rangel ◽  
Marta Navarrete ◽  
Jose C. Corchado ◽  
Joaquín Espinosa-García
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Energy Surface ◽  
Surface Kinetics ◽  
Kinetics And Dynamics

scholarly journals Correction: Kinetics and dynamics of the C(3P) + H2O reaction on a full-dimensional accurate triplet state potential energy surface

2020 ◽  
Vol 22 (7) ◽  
pp. 4276-4276
Author(s):  
Jun Li ◽  
Changjian Xie ◽  
Hua Guo
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Triplet State ◽  
Energy Surface ◽  
Chem Phys ◽  
Kinetics And Dynamics ◽  
State Potential ◽  
Phys Chem Chem Phys

Correction for ‘Kinetics and dynamics of the C(3P) + H2O reaction on a full-dimensional accurate triplet state potential energy surface’ by Jun Li et al., Phys. Chem. Chem. Phys., 2017, 19, 23280–23288.

scholarly journals Quasi-Classical Trajectory Study of the CN + NH3 Reaction Based on a Global Potential Energy Surface

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 994
Author(s):  
Joaquin Espinosa-Garcia ◽  
Cipriano Rangel ◽  
Moises Garcia-Chamorro ◽  
Jose C. Corchado
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Ab Initio ◽  
Energy Surface ◽  
Classical Trajectory ◽  
Theoretical Studies ◽  
Rotational Excitation ◽  
Title Reaction ◽  
Deep Wells ◽  
Kinetics And Dynamics

Based on a combination of valence-bond and molecular mechanics functions which were fitted to high-level ab initio calculations, we constructed an analytical full-dimensional potential energy surface, named PES-2020, for the hydrogen abstraction title reaction for the first time. This surface is symmetrical with respect to the permutation of the three hydrogens in ammonia, it presents numerical gradients and it improves the description presented by previous theoretical studies. In order to analyze its quality and accuracy, stringent tests were performed, exhaustive kinetics and dynamics studies were carried out using quasi-classical trajectory calculations, and the results were compared with the available experimental evidence. Firstly, the properties (geometry, vibrational frequency and energy) of all stationary points were found to reasonably reproduce the ab initio information used as input; due to the complicated topology with deep wells in the entrance and exit channels and a “submerged” transition state, the description of the intermediate complexes was poorer, although it was adequate to reasonably simulate the kinetics and dynamics of the title reaction. Secondly, in the kinetics study, the rate constants simulated the experimental data in the wide temperature range of 25–700 K, improving the description presented by previous theoretical studies. In addition, while previous studies failed in the description of the kinetic isotope effects, our results reproduced the experimental information. Finally, in the dynamics study, we analyzed the role of the vibrational and rotational excitation of the CN(v,j) reactant and product angular scattering distribution. We found that vibrational excitation by one quantum slightly increased reactivity, thus reproducing the only experimental measurement, while rotational excitation strongly decreased reactivity. The scattering distribution presented a forward-backward shape, associated with the presence of deep wells along the reaction path. These last two findings await experimental confirmation.

Kinetics and dynamics of the C(3P) + H2O reaction on a full-dimensional accurate triplet state potential energy surface

2017 ◽  
Vol 19 (34) ◽  
pp. 23280-23288 ◽  
Author(s):  
Jun Li ◽  
Changjian Xie ◽  
Hua Guo
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Triplet State ◽  
Energy Surface ◽  
Kinetics And Dynamics ◽  
State Potential

A full-dimensional accurate PES for the C(3P) + H2O reaction is developed using the PIP-NN method.

Sign in / Sign up

Export Citation Format

Share Document