Kinetic study of the reactions of chlorine atoms with fluoroethane and d-fluoroethane in the gas phase

Autor:	Katarzyna Brudnik, Dariusz Sarzyński, Ryszard Berkowski, Agnieszka A. Gola, Jerzy T. Jodkowski
Rok vydání:	2013
Předmět:	Reaction rate constant Chemistry Chlorine atom Kinetics Kinetic isotope effect Analytical chemistry General Physics and Astronomy Physical and Theoretical Chemistry Atmospheric temperature range Kinetic energy Gas phase
Zdroj:	Chemical Physics Letters. 581:30-35
ISSN:	0009-2614
Popis:	The kinetics of the gas-phase reactions of the chlorine atoms with fluoroethane (C 2 H 5 F) and d -fluoroethane (C 2 D 5 F) was studied experimentally. The relative rate method was applied using Cl + CH 3 Cl as the reference reaction. The rate constants for H-abstraction from C 2 H 5 F ( k H ) and D-abstraction from C 2 D 5 F ( k D ) were measured in the temperature range of 298–528.5 K. The temperature dependency of the rate constants are described by the expressions: k H = (2.11 ± 0.20) × 10 −11 exp(−317 ± 12/ T ) cm 3 molecule −1 s −1 and k D = (1.57 ± 0.18) × 10 −11 exp(−513 ± 26/ T ) cm 3 molecule −1 s −1 . KIE, kinetic isotope effect, described by the ratio k H / k D , was found to be 2.73 ± 0.14 at 298 K.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::af760d7dc161add9b45ec4a49ce78e34 https://doi.org/10.1016/j.cplett.2013.07.016 Zobrazit plný text záznamu Full Text from ScienceDirect