Variational transition state theory without the minimum-energy path

1997 ◽  
Vol 97 (1-4) ◽  
pp. 317-323 ◽  
Author(s):  
Jordi Villa ◽  
Donald G. Truhlar
Keyword(s):  
Transition State ◽  
Transition State Theory ◽  
Minimum Energy ◽  
State Theory ◽  
Minimum Energy Path ◽  
Variational Transition State Theory ◽  
Variational Transition State

Computational study on the reaction of atomic chlorine with 1,2-dibromoethane (CH2BrCH2Br)

2013 ◽  
Vol 91 (11) ◽  
pp. 1123-1129 ◽  
Author(s):  
Ang-yang Yu
Keyword(s):  
Transition State ◽  
Rate Constants ◽  
Transition State Theory ◽  
Computational Study ◽  
Minimum Energy ◽  
State Theory ◽  
Basis Set ◽  
Stationary Points ◽  
Variational Transition State Theory ◽  
Variational Transition State

In this work, the reaction mechanism and kinetics of Cl + CH2BrCH2Br → products are theoretically investigated for the first time. The optimized geometries and frequencies of all of the stationary points and selected points along the minimum-energy path for the three hydrogen abstraction channels and two bromine abstraction channels are calculated at the BH&H-LYP level with the 6-311G** basis set and the energy profiles are further calculated at the CCSD(T) level of theory. The rate constants are evaluated using the conventional transition-state theory, the canonical variational transition-state theory, and the canonical variational transition-state theory with a small-curvature tunneling correction over the temperature range 200–1000 K. The results show that reaction channel 3 is the primary channel and the calculated rate constants are in good agreement with available experimental values. The three-parameter Arrhenius expression for the total rate constants over 200–1000 K is provided.

scholarly journals Nanodusty plasma chemistry: a mechanistic and variational transition state theory study of the initial steps of silyl anion–silane and silylene anion–silane polymerization reactions

2015 ◽  
Vol 17 (24) ◽  
pp. 15928-15935 ◽  
Author(s):  
Junwei Lucas Bao ◽  
Prasenjit Seal ◽  
Donald G. Truhlar
Keyword(s):  
Transition State ◽  
Reaction Mechanisms ◽  
Transition State Theory ◽  
Plasma Chemistry ◽  
State Theory ◽  
Variational Transition State Theory ◽  
Variational Transition State

The aim of the present work is to understand the detailed reaction mechanisms in the growth of nanodusty particles, which is critical in plasma chemistry, physics and engineering.

Sign in / Sign up

Export Citation Format

Share Document