Premium
Reactions of Cl 2 P 3/2 : Absolute rate constants for reaction with H 2 , CH 4 , C 2 H 6 , CH 2 Cl 2 , C 2 Cl 4 , and cC 6 H 12
Author(s) -
Davis D. D.,
Braun W.,
Bass A. M.
Publication year - 1970
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/kin.550020204
Subject(s) - chemistry , reaction rate constant , chemical reaction , analytical chemistry (journal) , resonance (particle physics) , atom (system on chip) , resonance fluorescence , chlorine , chlorine atom , reaction rate , atomic physics , kinetics , fluorescence , medicinal chemistry , organic chemistry , catalysis , physics , quantum mechanics , computer science , embedded system
The absolute rate constants have been measured for several gas‐phase chlorine atom‐molecule reactions at 25°C by resonance fluorescence. These reactions and their corresponding rate constants in units of cm 3 mole −1 sec −1 are:The effects of varying the substrate pressure, total pressure, light intensity and chlorine‐atom source on the value of the bimolecular rate constants have been investigated for all these reactions. Conditions under which no competing side reaction occurs were established and the reported rate constants were measured under these conditions. For reactions (2), (5), (6), (7), and 8, there is a discrepancy of a factor of two between the rate constants measured in this work and values in the literature; it is suggested that this is due to an error in the previously measured value of k CH 4/ k H 2upon which the relative measurements in the literature ultimately depend.