UV ABSORPTION-SPECTRUM OF CH3OCH2 RADICALS AND KINETICS OF THE REACTION OF CH3OCH2O2 RADICALS WITH NO AND NO2 IN THE GAS-PHASE

Authors
LANGER S LJUNGSTROM E ELLERMANN T NIELSEN OJ SEHESTED J
Citation
S. Langer et al., UV ABSORPTION-SPECTRUM OF CH3OCH2 RADICALS AND KINETICS OF THE REACTION OF CH3OCH2O2 RADICALS WITH NO AND NO2 IN THE GAS-PHASE, Chemical physics letters, 240(1-3), 1995, pp. 53-56
Citations number
7
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
240
Issue
1-3
Year of publication
1995
Pages
53 - 56
Database
ISI
SICI code
0009-2614(1995)240:1-3<53:UAOCRA>2.0.ZU;2-6
Abstract
Alkyl and alkylperoxy radicals originating from dimethyl ether have be en studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over th e wavelength range 220-350 nm. At 230 nm, sigma(CH3OCH2) = (4.2 +/- 0. 5) X 10(-18) cm(2) molecule(-1) has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO2 were determine d to be (9.1 +/- 1.0) X 10(-12) cm(3) molecule(-1) s(-1) and (7.9 +/- 0.4) X 10(-12) cm(3) molecule(-1) s(-1), respectively.