Rate constant determinations by laser photolysis/diode laser infrared absorption: examples of HCO+O-2 -> HO2+CO and CH2OH+O-2 -> HCH(O)+HO2 reactionsat 294 K

Authors
Hanoune, B Dusanter, S ElMaimouni, L Devolder, P Lemoine, B
Citation
B. Hanoune et al., Rate constant determinations by laser photolysis/diode laser infrared absorption: examples of HCO+O-2 -> HO2+CO and CH2OH+O-2 -> HCH(O)+HO2 reactionsat 294 K, CHEM P LETT, 343(5-6), 2001, pp. 527-534
Citations number
29
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
343
Issue
5-6
Year of publication
2001
Pages
527 - 534
Database
ISI
SICI code
0009-2614(20010810)343:5-6<527:RCDBLP>2.0.ZU;2-H
Abstract
The reactions of formyl (HCO) and hydroxymethyl (CH2OH) radicals with O-2 h ave been studied at room temperature (294 +/-2 K) using pulsed laser photol ysis (PLP)/tunable diode laser (TDL) absorption spectroscopy. The formation of the stable molecular product, CO or HCH(O), has been monitored. The der ived values, k(1) = (5.0 +/-0.7) x 10(-12) cm(3) molecule(-1) s(-1) and k(2 ) = (10 +/-1.4) x 10(-12) cm(3) molecule(-1) s(-1), are in excellent agreem ent with previously published values obtained with different techniques. (C ) 2001 Elsevier Science B.V. All rights reserved.