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Atmospheric Formation of OH Radicals and H 2 O 2 from Alkene Ozonolysis under Humid Conditions
Author(s) -
Anglada Josep M.,
Aplincourt Philippe,
Bofill Josep M.,
Cremer Dieter
Publication year - 2002
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/1439-7641(20020215)3:2<215::aid-cphc215>3.0.co;2-3
Subject(s) - radical , chemistry , alkene , photochemistry , ozonolysis , hydrogen atom , oxide , hydrogen , molecule , excited state , atmosphere (unit) , inorganic chemistry , organic chemistry , catalysis , alkyl , physics , nuclear physics , thermodynamics
T he formation of OH radicals in the atmosphere as a result of the reaction of substituted carbonyl oxides with water was investigated by means of high‐level theoretical methods. The reaction between carbonyl oxide with water produces mainly α ‐hydroxy hydroperoxide but up to 5 % of OH radicals may be formed when the carbonyl oxide has a hydrogen atom in the β position. Vibrationally excited α ‐hydroxy hydroperoxide may decompose to produce OH radicals or become collisionally stabilized and react with a water molecule to produce H 2 O 2 (see Scheme).