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On the use of CO as scavenger for OH radicals in the ozonolysis of simple alkenes and isoprene
Author(s) -
Gutbrod Roland,
Meyer Stefan,
Rahman M. Muhibur,
Schindler Ralph N.
Publication year - 1997
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/(sici)1097-4601(1997)29:9<717::aid-kin9>3.0.co;2-x
Subject(s) - isoprene , chemistry , ozonolysis , radical , propene , 2 butene , ozone , photochemistry , scavenger , alkene , medicinal chemistry , organic chemistry , catalysis , polymer , copolymer
The OH radical yields generated in the ozonolysis of ethene (ET), propene (PR), cis ‐2‐butene (CB), trans ‐2‐butene (TB), 2,3‐dimethyl‐2‐butene (TME), and isoprene (ISP) in the presence of 20 Vol.% O 2 have been determined in a darkened glass reactor at 1 bar total pressure. The hydroxyl radicals formed were scavenged by an excess of CO added to the systems. The O 2 present converted H atoms formed in this reaction into HO 2 . From measurements of the increase in CO 2 generation by FTIR the OH formation yields were determined to be 0.08 (ET), 0.18 (PR), 0.17 (CB), 0.24 (TB), 0.36 (TME), and 0.19 (ISP), respectively, per molecule of reacted ozone. The combined error in the OH determinations is estimated to be <10%. © 1997 John Wiley & Sons, Inc.