Mechanism and Kinetics of the Oxidation of 1,3-Butadien-1-yl (n-C4H5): A Theoretical Study

2021 ◽  
Author(s):  
Denis P Porfiriev ◽  
Valeriy N. Azyazov ◽  
Alexander Mebel
Keyword(s):  
Potential Energy ◽  
Rate Constants ◽  
Energy Surface ◽  
Theoretical Study ◽  
Branching Ratios ◽  
Dependent Rate ◽  
Mechanism And Kinetics ◽  
Temperature And Pressure ◽  
Product Branching ◽  
Kinetics Of

Ab initio CCSD(T)-F12/cc-pVTZ-f12//B3LYP/6-311G(d,p) calculations of the C4H5O2 potential energy surface have been combined with Rice-Ramsperger-Kassel-Marcus Master Equation (RRKM-ME) calculations of temperature- and pressure-dependent rate constants and product branching ratios to...

scholarly journals Theoretical study of the reaction mechanism and kinetics of the phenyl + propargyl association

2020 ◽  
Vol 22 (13) ◽  
pp. 6868-6880 ◽  
Author(s):  
Alexander N. Morozov ◽  
Alexander M. Mebel
Keyword(s):  
Reaction Mechanism ◽  
Energy Surface ◽  
Theoretical Study ◽  
Recombination Reaction ◽  
Propargyl Radical ◽  
Dependent Rate ◽  
Mechanism And Kinetics ◽  
Temperature And Pressure ◽  
High Level ◽  
Kinetics Of

Potential energy surface for the phenyl + propargyl radical recombination reaction has been studied using high-level ab initio calculations and temperature- and pressure-dependent rate constants and product yields have been computed employing RRKM-ME.

Computational study on the mechanisms and kinetics of the CH2CCl + O2 reaction

2020 ◽  
Vol 98 (8) ◽  
pp. 395-402
Author(s):  
Yunju Zhang ◽  
Bing He ◽  
Yuxi Sun
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Pressure Dependence ◽  
Rate Constants ◽  
Reaction Mechanisms ◽  
Energy Surface ◽  
Computational Study ◽  
Tddft Calculations ◽  
Temperature And Pressure ◽  
Kinetics Of

The potential energy surface for the CH2CCl + O2 reaction has been investigated by using the CCSD(T)/cc-pVTZ//B3LYP/6-311++G(d,p) method. Two type reaction mechanisms have been located. The H-abstraction of CH2CCl by O2 generates CHCCl + HO2 surmounting a 20.86 kcal/mol barrier. The addition between O2 and CH2CCl proceeds to an intermediate CH2CClO2 (IM1t and IM1c) without a barrier, which can further dissociate or isomerize to various products with the complicated processes. The temperature and pressure dependence rate constants for the CH2CCl + O2 reaction were computed by means of multi-channel RRKM-TST theory. Moreover, TDDFT calculations imply that IM1t, IM1c, IM2, IM4, IM5t, and IM5c will photolyze under the sunlight.

Ab Initio/RRKM Study of the Potential Energy Surface of Triplet Ethylene and Product Branching Ratios of the C(3P) + CH4Reaction

2003 ◽  
Vol 107 (11) ◽  
pp. 1788-1796 ◽  
Author(s):  
Gap-Sue Kim ◽  
Thanh Lam Nguyen ◽  
Alexander M. Mebel ◽  
Sheng H. Lin ◽  
Minh Tho Nguyen
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Ab Initio ◽  
Energy Surface ◽  
Branching Ratios ◽  
Product Branching
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