Global Analytic Potential Energy Surface of PH2+ (13A″) and Dynamics Studies of the P+(3P) + D2 Reaction

IF 2.3 3区 化学 Q3 CHEMISTRY, PHYSICAL International Journal of Quantum Chemistry Pub Date : 2024-12-20 DOI:10.1002/qua.70004
Meirong Li, Xia Li, Zhiyong Yang, Ziliang Zhu, Wei Xing
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Abstract

The global potential energy surface (PES) of PH2+(13A″) was constructed using permutation invariant polynomial neural network method based on 18 566 ab initio energy points. In ab initio calculation, aug-cc-pVQZ and aug-cc-pwCVQZ basis sets were used for H and P+, respectively. The topographic features of the PES were discussed in detail and compared with available theoretical and experimental values. The results indicate that the PES is well fitted by using neural network method. In addition, quasi-classical trajectory (QCT) calculations were carried out for the P+(3P) + D2 reaction in the collision energy range from 1.2 to 8.0 eV. The integral cross sections were reported and compared with experimental data. The differential cross sections were also calculated, and it reflects that the “complex-forming” mechanism dominates the reaction in the low collision energy range, and direct abstraction mechanism plays a dominant role in the high collision energy range.

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PH2+ (13A″) 的全局分析势能面和 P+(3P) + D2 反应的动力学研究
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International Journal of Quantum Chemistry
International Journal of Quantum Chemistry 化学-数学跨学科应用
CiteScore
4.70
自引率
4.50%
发文量
185
审稿时长
2 months
期刊介绍: Since its first formulation quantum chemistry has provided the conceptual and terminological framework necessary to understand atoms, molecules and the condensed matter. Over the past decades synergistic advances in the methodological developments, software and hardware have transformed quantum chemistry in a truly interdisciplinary science that has expanded beyond its traditional core of molecular sciences to fields as diverse as chemistry and catalysis, biophysics, nanotechnology and material science.
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