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A kinetics study of the reactions of OH with several aromatic and olefinic compounds
Author(s) -
Ravishankara A. R.,
Wagner S.,
Fischer S.,
Smith G.,
Schiff R.,
Watson R. T.,
Tesi G.,
Davis D. D.
Publication year - 1978
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.550100802
Subject(s) - torr , chemistry , radical , analytical chemistry (journal) , organic chemistry , thermodynamics , physics
Abstract The reactions of hydroxyl radicals with eight substituted aromatic hydrocarbons and four olefins were studied utilizing the flash photolysis–resonance fluorescence technique. The rate constants were measured at 298°K using either Ar or He as the diluent gas. The values of the rate constants ( k × 10 12 ) in the units of cm 3 /molec. sec are (a) OH + o ‐xylene → products: (12.9±3.8), 20 torr He; (13.0±0.3), 20 torr Ar; (12.4±0.1), 200 torr He; (b) OH + m ‐xylene → products: (15.6±1.4), 3 torr Ar; (19.4±0.8), 20 torr Ar; (21.4±0.2), 20 torr He; (20.3±1.9), 200 torr Ar; (20.6±1.3), 200 Torr He; (c) OH + p ‐xylene → products: (8.8±1.2), 3 torr Ar; (10.1±1.0), 20 torr He; (10.5±0.6), 200 torr He; (d) OH + ethyl benzene → products: (7.50±0.38), 3 torr He; (7.06±0.26), 20 torr He; (7.95±0.28), 200 torr He; (e) OH + n ‐propylbenzene → products: (6.40±0.36), 20 torr He; (5.86±0.16), 200 torr He; (f) OH + isopropylbenzene → products: (7.79±0.40), 200 torr He; (g) OH + hexafluorobenzene → products: (0.221±0.020), 20 torr He; (0.219±0.016) 200 torr He; (h) OH + n ‐propyl pentafluorobenzene → products: (2.52±0.54), 3 torr He; (3.01±0.76), 20 torr He; (3.06±0.24), 200 torr He; (i) OH + propylene → products: (25.6±1.2), 20 torr He; (26.3±1.2), 200 torr He; (j) OH + 1‐butene → products: (29.6±1.9), 3 torr He; (29.4±1.4), 20 torr He; (k) OH + cis ‐2‐butene → products: (43.2±4.1), 3 torr He; (42.6±2.5), 20 torr He; (l) OH + tetramethylethylene → products: (56.9±1.3), 20 torr He.