Premium
Temperature dependence of the rate constants of the reactions of oxygen atoms with 1‐pentene, 1‐hexene, cis ‐2‐pentene, and trans ‐2‐pentene
Author(s) -
Weber M.,
Hake A.,
Stuhl F.
Publication year - 1997
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/(sici)1097-4601(1997)29:2<149::aid-kin9>3.0.co;2-u
Subject(s) - pentene , chemistry , reaction rate constant , oxygen atom , kinetics , oxygen , atmospheric temperature range , hexene , photochemistry , medicinal chemistry , thermodynamics , catalysis , organic chemistry , molecule , ethylene , physics , quantum mechanics
The kinetics of the reactions of ground state oxygen atoms with 1‐pentene, 1‐hexene, cis ‐2‐pentene, and trans ‐2‐pentene was investigated in the temperature range 200 to 370 K. In this range the temperature dependences of the rate constants can be represented by k = A′ T n exp(− E′ a /RT) with A′ = (1.0 ± 0.6) · 10 −14 cm 3 s −1 , n = 1.13 ± 0.02, E′ a = 0.54 ± 0.05 kJ mol −1 for 1‐pentene: A′ = (1.3 ± 1.2) · 10 −14 cm 3 s −1 , n = 1.04 ± 0.08, E′ a = 0.2 ± 0.4 kJ mol −1 for 1‐hexene; A′ = (0.6 ± 0.6) · 10 −14 cm 3 s −1 , n = 1.12 ± 0.05, E′ a = − 3.8 ± 0.8 kJ mol −1 for cis ‐2‐pentene; and A′ = (0.6 ± 0.8) · 10 −14 cm 3 s −1 , n = 1.14 ± 0.06, E′ a = − 4.3 ± 0.5 kJ mol −1 for trans ‐2‐pentene. The atoms were generated by the H 2 ‐laser photolysis of NO and detected by time resolved chemiluminescence in the presence of NO. The concentrations of the O( 3 P) atoms were kept so low that secondary reactions with products are unimportant. © 1997 John Wiley & Sons, Inc.