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Kinetics of the reactions of the hydroxyl radical with dimethyl ether and diethyl ether
Author(s) -
Tully Frank P.,
Droege August T.
Publication year - 1987
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.550190308
Subject(s) - chemistry , arrhenius equation , diethyl ether , dimethyl ether , dissociation (chemistry) , bond dissociation energy , ether , hydroxyl radical , hydrogen atom abstraction , medicinal chemistry , kinetics , reaction rate constant , atmospheric temperature range , hydrogen , photochemistry , radical , thermodynamics , activation energy , organic chemistry , catalysis , physics , quantum mechanics
Abstract Absolute rate coefficients for the reactions of the hydroxyl radical with dimethyl ether ( k 1 ) and diethyl ether ( k 2 ) were measured over the temperature range 295–442 K. The rate coefficient data, in the units cm 3 molecule −1 s −1 , were fitted to the Arrhenius equations k 1 ( T ) = (1.04 ± 0.10) × 10 −11 exp[−(739 ± 67 cal mol −1 )/ RT ] and k 2 ( T ) = (9.13 ± 0.35) × 10 −12 exp[+(228 ± 27 kcal mol −1 )/ RT ], respectively, in which the stated error limits are 2σ values. Our results are compared with those of previous studies of hydrogen‐atom abstraction from saturated hydrocarbons by OH. Correlations between measured reaction‐rate coefficients and CH bond‐dissociation energies are discussed.