Theoretical Study of the Integral Cross Sections in the Reaction He + H2+→ HeH++ H on a Newly Revised Potential Energy Surface

2010 ◽  
Vol 83 (11) ◽  
pp. 1346-1351 ◽  
Author(s):  
Tianyun Chen ◽  
Weiping Zhang ◽  
Haibo Ma ◽  
Jing Cui
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Cross Sections ◽  
Energy Surface ◽  
Theoretical Study

Rotational de-excitations of C3H+ (1Σ+) by collision with He: new ab initio potential energy surface and scattering calculations

2020 ◽  
Vol 494 (4) ◽  
pp. 5675-5681 ◽  
Author(s):  
Sanchit Chhabra ◽  
T J Dhilip Kumar
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Ab Initio ◽  
Cross Sections ◽  
Energy Surface ◽  
Molecular Ions ◽  
Basis Set ◽  
Rate Coefficients ◽  
Close Coupling ◽  
Collisional Rate Coefficients

ABSTRACT Molecular ions play an important role in the astrochemistry of interstellar and circumstellar media. C3H+ has been identified in the interstellar medium recently. A new potential energy surface of the C3H+–He van der Waals complex is computed using the ab initio explicitly correlated coupled cluster with the single, double and perturbative triple excitation [CCSD(T)-F12] method and the augmented correlation consistent polarized valence triple zeta (aug-cc-pVTZ) basis set. The potential presents a well of 174.6 cm−1 in linear geometry towards the H end. Calculations of pure rotational excitation cross-sections of C3H+ by He are carried out using the exact quantum mechanical close-coupling approach. Cross-sections for transitions among the rotational levels of C3H+ are computed for energies up to 600 cm−1. The cross-sections are used to obtain the collisional rate coefficients for temperatures T ≤ 100 K. Along with laboratory experiments, the results obtained in this work may be very useful for astrophysical applications to understand hydrocarbon chemistry.

Theoretical study of the Cl(2P) + SiH4 reaction: Global potential energy surface and product pair-correlated distributions. Comparison with experiment.

2021 ◽  
Author(s):  
J. Espinosa-Garcia ◽  
Jose Carlos Corchado
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Energy Surface ◽  
Theoretical Study ◽  
Title Reaction ◽  
Comparison With Experiment ◽  
Explicitly Correlated ◽  
High Level ◽  
First Time ◽  
Product Pair

For the theoretical study of the title reaction, an analytical full-dimensional potential energy surface named PES-2021 was developed for the first time, by fitting high-level explicitly-correlated ab initio data. This...

Theoretical Study of the CH3NO2Unimolecular Decomposition Potential Energy Surface

2002 ◽  
Vol 106 (32) ◽  
pp. 7294-7303 ◽  
Author(s):  
Wen-Fang Hu ◽  
Tian-Jing He ◽  
Dong-Ming Chen ◽  
Fan-Chen Liu
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Energy Surface ◽  
Theoretical Study ◽  
Decomposition Potential

Theoretical study of the [Si, C, P, O] potential energy surface

2007 ◽  
Vol 105 (17-18) ◽  
pp. 2423-2432 ◽  
Author(s):  
Fei Li ◽  
Zhuo Li ◽  
Guang-Tao Yu ◽  
Xu-Ri Huang ◽  
Chia-Chung Sun
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Energy Surface ◽  
Theoretical Study

scholarly journals Theoretical study on the reaction of triallyl isocyanurate in the UV radiation cross-linking of polyethylene

RSC Advances ◽  
2017 ◽  
Vol 7 (59) ◽  
pp. 37095-37104 ◽  
Author(s):  
Hong Zhao ◽  
Junqi Chen ◽  
Hui Zhang ◽  
Yan Shang ◽  
Xuan Wang ◽  
...  
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Uv Radiation ◽  
Theoretical Investigation ◽  
High Voltage ◽  
Energy Surface ◽  
Theoretical Study ◽  
Cross Linking ◽  
Surface Information ◽  
Reaction Potential

Herein, a theoretical investigation on the reaction potential energy surface information of triallyl isocyanurate (TAIC) in the UV radiation cross-linking process of polyethylene is conducted at the B3LYP/6-311+G(d,p) level for the production of high voltage cable insulation materials.

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