The temperature dependence of the kinetic isotope effect in the reaction of F atoms with CH4 and CD4

2006 ◽  
Vol 430 (4-6) ◽  
pp. 251-254 ◽  
Author(s):  
Avigdor Persky
Keyword(s):  
Temperature Dependence ◽  
Isotope Effect ◽  
Kinetic Isotope Effect ◽  
Kinetic Isotope

Quantum Mechanical Tunneling in Homodienyl Sigmatropic [1,5]-Hydrogen Shifts of (Hydroxymethyl)styrylcyclopropanes

1990 ◽  
Vol 43 (6) ◽  
pp. 1071 ◽  
Author(s):  
GG Pegg ◽  
GV Meehan
Keyword(s):  
Low Temperature ◽  
Temperature Dependence ◽  
Isotope Effect ◽  
Kinetic Isotope Effect ◽  
Natural Compounds ◽  
Quantum Mechanical ◽  
Strong Temperature Dependence ◽  
Quantum Mechanical Tunneling ◽  
Hydrogen Migration ◽  
Kinetic Isotope

The strong temperature dependence of the deuterium kinetic isotope effect observed for homodienyl [1,5]-hydrogen migration of [hydroxy (D)methyl] styrylcyclopropanes (1c,d) in hexane solvent is suggestive of a significant tunnelling contribution to the mechanism. While the hydroxy substituent at the migration origin appears to influence the thermolytic behaviour of these molecules, attempts to promote oxy anionic homodienyl rearrangement in the isotopically natural compounds (1a,b) at low temperature were unsuccessful.

Atmospheric chemistry of ethers, esters, and alcohols on the lifetimes, temperature dependence, and kinetic isotope effect: an example of CF3CX2CX2CX2OX with OX reactions (X = H, D)

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 36096-36108 ◽  
Author(s):  
Feng-Yang Bai ◽  
Xu Wang ◽  
Yan-Qiu Sun ◽  
Rong-Shun Wang ◽  
Xiu-Mei Pan
Keyword(s):  
Temperature Dependence ◽  
Isotope Effect ◽  
Atmospheric Chemistry ◽  
Theoretical Basis ◽  
Kinetic Isotope Effect ◽  
Kinetic Isotope ◽  
Kinetics Of ◽  
Sound Theoretical Basis

Mechanisms and kinetics of the reaction of CF3CX2CX2CX2OX with OX (X= H, D) radical are investigated on a sound theoretical basis.

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