A nine-dimensional global potential energy surface for NH4(X2A1) and kinetics studies on the H + NH3 ↔ H2 + NH2 reaction

Literature Information

Publication Date 2014-02-12
DOI 10.1039/C4CP00241E
Impact Factor 3.676
Authors

Jun Li, Hua Guo


View Original

Abstract

Extensive ab initio calculations of the stationary points in the NH4(X2A1) system are reported using both coupled cluster and multi-reference configuration interaction methods. In addition, more than 100 000 points are generated over a large configuration space and energy range (6 eV) using the explicitly correlated unrestricted coupled cluster method with single, double, and perturbative triple excitations with the augmented correlation-consistent polarized triple zeta basis set (UCCSD(T)-F12a/aug-cc-pVTZ). Using the recently proposed permutation-invariant polynomial neural network (PIP-NN) method, these points are accurately fit to an analytical form with a total root mean squared error (RMSE) of 3.4 meV (0.08 kcal mol−1). Both the abstraction and exchange channels as well as the metastable ammonium radical (NH4) are included in this potential energy surface. Transition-state theory and quasi-classical trajectory calculations have been performed to obtain the rate constants for the abstraction reaction and its reverse. Comparison with available experimental results is satisfactory, providing supporting evidence for the accuracy of the potential.

Related Literature

Temperature dependence of X-ray absorption and nuclear magnetic resonance spectra: probing quantum vibrations of light elements in oxides

Christel Gervais, Christian Brouder, Nicolas Trcera, Amélie Bordage, Cristina Coelho-Diogo, Pierre Florian, Aydar Rakhmatullin, Lorenzo Paulatto, Michele Lazzeri, Delphine Cabaret

2017-01-30 Paper

DOI: 10.1039/C6CP08393E

Charge transport mechanisms in sol–gel grown La0.7Pb0.3MnO3/LaAlO3 manganite films

Eesh Vaghela, M. J. Keshvani, Keval Gadani, Zalak Joshi, Hetal Boricha, K. Asokan, D. Venkateshwarlu, V. Ganesan, N. A. Shah, P. S. Solanki

2017-01-31 Paper

DOI: 10.1039/C6CP07730G

Chemically induced topological zero mode at graphene armchair edges

M. Ziatdinov, H. Lim, S. Fujii, K. Kusakabe, M. Kiguchi, T. Enoki, Y. Kim

2017-01-17 Paper

DOI: 10.1039/C6CP08352H

Contents list

Front/Back Matter

DOI: 10.1039/C7CP90036H

Hydration of the simplest α-keto acid: a rotational spectroscopic and ab initio study of the pyruvic acid–water complex

Elijah G. Schnitzler, Nathan A. Seifert, Supriya Ghosh, Javix Thomas, Yunjie Xu, Wolfgang Jäger

2017-01-17 Paper

DOI: 10.1039/C6CP08741H

Triplet exciton dissociation and electron extraction in graphene-templated pentacene observed with ultrafast spectroscopy

Thomas J. McDonough, Lushuai Zhang, Susmit Singha Roy, Nicholas M. Kearns, Michael S. Arnold, Martin T. Zanni

2017-01-23 Paper

DOI: 10.1039/C6CP06454J

A theoretical study of the potential energy surfaces for the double proton transfer reaction of model DNA base pairs

Chaozheng Li, Yonggang Yang, Donglin Li, Yufang Liu

2017-01-17 Paper

DOI: 10.1039/C6CP07716A

You might also like

Compound Q&A

What are the main uses of (5-Sulfamoyl-3-pyridinyl)boronic acid (CAS: 951233-61-7)?

(5-Sulfamoyl-3-pyridinyl)boronic acid is primarily used in chemical synthesis, p...

951233-61-7(5-Sulfamoyl-3-pyrid...
Compound Q&A

How is Benzyl 2-methyl-2-(methylsulfonyl)-4-pentenoate (CAS: 1942858-50-5) typically synthesized?

Benzyl 2-methyl-2-(methylsulfonyl)-4-pentenoate is typically synthesized via est...

1942858-50-5Benzyl 2-methyl-2-(m...
Compound Q&A

What precautions should be taken when handling 8-Fluoroquinolin-6-ol (CAS: 209353-22-0)?

When handling 8-Fluoroquinolin-6-ol (CAS: 209353-22-0), it is important to use p...

209353-22-08-Fluoroquinolin-6-o...
Compound Q&A

What are the physical and chemical properties of 1,3-Dibromo-5-(2-methyl-2-propanyl)benzene (CAS: 129316-09-2)?

1,3-Dibromo-5-(2-methyl-2-propanyl)benzene (CAS: 129316-09-2) is a crystalline c...

129316-09-21,3-Dibromo-5-(2-met...
Compound Q&A

What industries use Ethyl 7-chloro-4-oxo-1-(1,3-thiazol-2-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxylate (CAS: 174726-87-5)?

Ethyl 7-chloro-4-oxo-1-(1,3-thiazol-2-yl)-1,4-dihydro-1,8-naphthyridine-3-carbox...

174726-87-5Ethyl 7-chloro-4-oxo...
Compound Q&A

What precautions should be taken when handling Delta-7-Avenasterol (CAS: 23290-26-8)?

When handling Delta-7-Avenasterol (CAS: 23290-26-8), it is important to wear app...

23290-26-8Delta-7-Avenasterol
872992-20-6N-({(5R)-3-[3-Fluoro...
Compound Q&A

What precautions should be taken when handling 2-Methyl-2-proanyl 4-[(2-aminophenyl)amino]-1-piperidinecarboxylate (CAS: 79099-00-6)?

When handling 2-Methyl-2-proanyl 4-[(2-aminophenyl)amino]-1-piperidinecarboxylat...

79099-00-62-Methyl-2-propanyl ...
Compound Q&A

What is N-Methyl-4-chlorobenzylamine hydrochloride (CAS: 65542-24-7)?

N-Methyl-4-chlorobenzylamine hydrochloride (CAS: 65542-24-7) is a organic compou...

65542-24-7N-Methyl-4-chloroben...
Compound Q&A

Is [2-(Dodecyloxy)ethoxy]acetic acid (CAS: 27306-90-7) safe?

[2-(Dodecyloxy)ethoxy]acetic acid (CAS: 27306-90-7) is generally considered safe...

27306-90-7[2-(Dodecyloxy)ethox...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.