Premium
Kinetics of the reactions Br + NO 2 + M and I + NO 2 + M
Author(s) -
Mellouki A.,
Laverdet G.,
Jourdain J. L.,
Poulet G.
Publication year - 1989
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.550211209
Subject(s) - chemistry , torr , reaction rate constant , analytical chemistry (journal) , mass spectrometry , kinetics , helium , thermodynamics , organic chemistry , chromatography , quantum mechanics , physics
Abstract The reactions Br + NO 2 + M → BrNO 2 + M (1) and I + NO 2 + M → INO 2 + M (2) have been studied at low pressure (0.6‐2.2 torr) at room temperature and with helium as the third body by the discharge‐flow technique with EPR and mass spectrometric analysis of the species. The following third order rate constants were found k 1(0) = (3.7 ± 0.7) × 10 −31 and k 2(0) = (0.95 ± 0.35) × 10 −31 (units are cm 6 molecule −2 s −1 ). The secondary reactions X + X NO 2 → X 2 + NO 2 ( X = Br, I) have been studied by mass spectrometry and their rate constants have been estimated from product analysis and computer modeling.