The CH2CHO + O channel of the reaction of vinyl radical with O2

Tatsuo Oguchi; Yoshihisa Sato; Hiroyuki Matsui

doi:10.1016/j.cplett.2009.03.012

The CH₂CHO + O channel of the reaction of vinyl radical with O₂

Tatsuo Oguchi^*, Yoshihisa Sato, Hiroyuki Matsui

^*Corresponding author for this work

Department of Applied Chemistry

Research output: Contribution to journal › Article

5 Scopus citations

Abstract

The reaction kinetics of C₂H₃ + O₂ has been studied at room temperature, where, CH₂CHO produced in this reaction is monitored quantitatively by using a laser induced fluorescence technique. The reaction rate constant is obtained as (8.5 ± 1.0) × 10^-12 cm³ molecule^-1 s^-1 with almost no pressure dependence for the range of 10-100 Torr (He): the present result is consistent with the previous experimental studies. Also by using two different precursors as a source of C₂H₃, the branching fraction of producing CH₂CHO + O channel is determined as φ{symbol}(CH₂CHO) = 0.14-0.21, i.e., O-O bond scission in the reaction intermediate, vinylperoxy radical, is confirmed, exhibiting clear contrast to alkylperoxy radicals.

Original language	English
Pages (from-to)	181-184
Number of pages	4
Journal	Chemical Physics Letters
Volume	472
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2009.03.012
State	Published - 20 Apr 2009

Access to Document

10.1016/j.cplett.2009.03.012

Link to publication in Scopus

Fingerprint Dive into the research topics of 'The CH<sub>2</sub>CHO + O channel of the reaction of vinyl radical with O<sub>2</sub>'. Together they form a unique fingerprint.

Cite this

Oguchi, T., Sato, Y., & Matsui, H. (2009). The CH₂CHO + O channel of the reaction of vinyl radical with O₂. Chemical Physics Letters, 472(4-6), 181-184. https://doi.org/10.1016/j.cplett.2009.03.012

@article{5ed075890646419c83613af239d47f01,

title = "The CH2CHO + O channel of the reaction of vinyl radical with O2",

abstract = "The reaction kinetics of C2H3 + O2 has been studied at room temperature, where, CH2CHO produced in this reaction is monitored quantitatively by using a laser induced fluorescence technique. The reaction rate constant is obtained as (8.5 ± 1.0) × 10-12 cm3 molecule-1 s-1 with almost no pressure dependence for the range of 10-100 Torr (He): the present result is consistent with the previous experimental studies. Also by using two different precursors as a source of C2H3, the branching fraction of producing CH2CHO + O channel is determined as φ{symbol}(CH2CHO) = 0.14-0.21, i.e., O-O bond scission in the reaction intermediate, vinylperoxy radical, is confirmed, exhibiting clear contrast to alkylperoxy radicals.",

author = "Tatsuo Oguchi and Yoshihisa Sato and Hiroyuki Matsui",

year = "2009",

month = apr,

day = "20",

doi = "10.1016/j.cplett.2009.03.012",

language = "English",

volume = "472",

pages = "181--184",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

number = "4-6",

}

TY - JOUR

T1 - The CH2CHO + O channel of the reaction of vinyl radical with O2

AU - Oguchi, Tatsuo

AU - Sato, Yoshihisa

AU - Matsui, Hiroyuki

PY - 2009/4/20

Y1 - 2009/4/20

N2 - The reaction kinetics of C2H3 + O2 has been studied at room temperature, where, CH2CHO produced in this reaction is monitored quantitatively by using a laser induced fluorescence technique. The reaction rate constant is obtained as (8.5 ± 1.0) × 10-12 cm3 molecule-1 s-1 with almost no pressure dependence for the range of 10-100 Torr (He): the present result is consistent with the previous experimental studies. Also by using two different precursors as a source of C2H3, the branching fraction of producing CH2CHO + O channel is determined as φ{symbol}(CH2CHO) = 0.14-0.21, i.e., O-O bond scission in the reaction intermediate, vinylperoxy radical, is confirmed, exhibiting clear contrast to alkylperoxy radicals.

AB - The reaction kinetics of C2H3 + O2 has been studied at room temperature, where, CH2CHO produced in this reaction is monitored quantitatively by using a laser induced fluorescence technique. The reaction rate constant is obtained as (8.5 ± 1.0) × 10-12 cm3 molecule-1 s-1 with almost no pressure dependence for the range of 10-100 Torr (He): the present result is consistent with the previous experimental studies. Also by using two different precursors as a source of C2H3, the branching fraction of producing CH2CHO + O channel is determined as φ{symbol}(CH2CHO) = 0.14-0.21, i.e., O-O bond scission in the reaction intermediate, vinylperoxy radical, is confirmed, exhibiting clear contrast to alkylperoxy radicals.

UR - http://www.scopus.com/inward/record.url?scp=63249097183&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2009.03.012

DO - 10.1016/j.cplett.2009.03.012

M3 - Article

AN - SCOPUS:63249097183

VL - 472

SP - 181

EP - 184

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 4-6

ER -