Reaction Mechanism of Naphthyl Radicals with Molecular Oxygen. 1. Theoretical Study of the Potential Energy Surface

2012 ◽  
Vol 116 (6) ◽  
pp. 1571-1585 ◽  
Author(s):  
Chong-Wen Zhou ◽  
Vadim V. Kislov ◽  
Alexander M. Mebel
Keyword(s):  
Reaction Mechanism ◽  
Potential Energy ◽  
Potential Energy Surface ◽  
Molecular Oxygen ◽  
Energy Surface ◽  
Theoretical Study

THEORETICAL STUDY ON THE MECHANISM OF THE REACTION OF Ni(d10 1S) + H2 + CO2 → NiCO + H2O

2005 ◽  
Vol 04 (02) ◽  
pp. 449-459 ◽  
Author(s):  
SONG QIN ◽  
CHANGWEI HU ◽  
HUAQING YANG
Keyword(s):  
Reaction Mechanism ◽  
Potential Energy ◽  
Potential Energy Surface ◽  
Energy Barrier ◽  
Energy Surface ◽  
Theoretical Study ◽  
Bond Cleavage ◽  
Rate Determining Step ◽  
Singlet Potential Energy Surface ◽  
Mechanism Of The Reaction

The detailed singlet potential energy surface (PES) of the reaction of Ni ( d 10 1 S ) + H 2 + CO 2→ NiCO + H2O is investigated at the CCSD(T) /6-311+ G(2d,2p) // B3LYP /6-311+ G(2d,2p) levels in order to explore possible reaction mechanism of CO 2 hydrogenation on Ni center. The calculation predicts that the co-interacted H 2 involved C–O bond cleavage of CO 2 molecule is prior to the dissociation of adsorbed H 2 molecule, and the entire reaction is exothermic by 297.3 kJ/mol with an energy barrier of 137.7 kJ/mol. The rate-determining step (RDS) for the overall reaction is predicted to be the insertion of Ni into the C–O bond of the CO 2 moiety.

scholarly journals Theoretical study on the reaction between silacyclopropenylidene and three-membered heterocyclic compounds (azirane and oxirane): An alternative approach to the formation of heterocyclic silylene

2020 ◽  
Vol 45 ◽  
pp. 146867832090205
Author(s):  
Xiaojun Tan ◽  
Mengyao Wu ◽  
Yilin Wang ◽  
Guizhi Shi ◽  
Jinsong Gu
Keyword(s):  
Reaction Mechanism ◽  
Potential Energy ◽  
Potential Energy Surface ◽  
Heterocyclic Compounds ◽  
Energy Surface ◽  
Theoretical Study ◽  
Stationary Points ◽  
Dissociation Process ◽  
Alternative Approach ◽  
Insertion Process

The reaction mechanism between silacyclopropenylidene and three-membered heterocyclic compounds (azirane and oxirane) has been systematically investigated at the B3LYP/6-311+G* level of theory in order to better understand the reactivity of unsaturated cyclic silylene. Geometry optimizations and vibrational analyses have been conducted for the stationary points on the potential energy surface of the system. Calculations show that the Si-spiroheterocyclic intermediate and four-membered heterocyclic silylene compound could be produced through the insertion process and subsequent dissociation process between silacyclopropenylidene and three-membered heterocyclic compounds. For the insertion process, it is easier for silacyclopropenylidene to insert into C-N bond of azirane than into C-O bond of oxirane. This study is helpful to understand the reactivity of silacyclopropenylidene, the evolution of silicon-bearing molecules in space, and to offer an alternative approach to the formation of enlarged heterocyclic silylene compound.

THEORETICAL STUDY ON THE SELF-REACTION MECHANISM OF CH2ClO2 RADICALS

2009 ◽  
Vol 08 (01) ◽  
pp. 119-142 ◽  
Author(s):  
WEN-MEI WEI ◽  
REN-HUI ZHENG ◽  
YAN TIAN ◽  
ZHI-HONG GU ◽  
YONG-YAN XIE
Keyword(s):  
Reaction Mechanism ◽  
Potential Energy ◽  
Potential Energy Surface ◽  
Complex Potential ◽  
Energy Surface ◽  
Theoretical Study ◽  
Transition States ◽  
The Self ◽  
Stationary Points ◽  
Energy Barriers

The complex potential energy surface for the self-reaction of CH 2 ClO 2 radicals, including 12 intermediates, 33 interconversion transition states, and 21 major dissociation products, was theoretically probed at the CCSD(T)/cc-pVDZ//B3LYP/6-311G(2d,2p) level of theory. The geometries and relative energies for various stationary points were determined. Based on the calculated CCSD(T)/cc-pVDZ potential energy surface, the possible mechanism for the studied system was proposed. It is shown that the most feasible channels are those leading to 22 CH 2 ClO + 3 O 2, 2 CH 2 ClO + 2 HO 2 + CHClO , 2 CH 2 ClO + HCl + 2 CH(O)O 2, 2 CH 2 ClO + 3 O 2 + 2 Cl + CH 2 O , and p,s,o- CH 2 ClOOOCl + CH 2 O with the energy barriers of 5.6, 11.8, 12.4, 12.4, and 13.5 kcal/mol, respectively. Their mechanisms are that CH 2 ClO 2 and CH 2 ClO 2 form a tetroxide intermediate first, then the intermediate dissociates to yield the productions or through multi-steps reactions to produce the final products.

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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