UV absorption spectrum of CH3OCH2 radicals and kinetics of the reaction of CH3OCH2O2 radicals with NO and NO2 in the gas phase

Sarka Langer; Evert Ljungström; Thomas Ellermann; Ole J. Nielsen; Jens Sehested

doi:10.1016/0009-2614(95)00486-N

UV absorption spectrum of CH₃OCH₂ radicals and kinetics of the reaction of CH₃OCH₂O₂ radicals with NO and NO₂ in the gas phase

Sarka Langer, Evert Ljungström^*, Thomas Ellermann, Ole J. Nielsen, Jens Sehested

^*Corresponding author af dette arbejde

47 Citationer (Scopus)

Abstract

Alkyl and alkylperoxy radicals originating from dimethyl ether have been studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over the wavelength range 220-350 nm. At 230 nm, σ_CH₃OCH₂ = (4.2 ± 0.5) × 10^-18 cm² molecule^-1 has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO₂ were determined to be (9.1 ± 1.0) × 10^-12 cm³ molecule^-1 s^-1 and (7.9 ± 0.4) × 10^-12 cm³ molecule^-1 s^-1, respectively.

Originalsprog	Engelsk
Tidsskrift	Chemical Physics Letters
Vol/bind	240
Udgave nummer	1-3
Sider (fra-til)	53-56
Antal sider	4
ISSN	0009-2614
DOI	https://doi.org/10.1016/0009-2614(95)00486-N
Status	Udgivet - 23 jun. 1995

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title = "UV absorption spectrum of CH3OCH2 radicals and kinetics of the reaction of CH3OCH2O2 radicals with NO and NO2 in the gas phase",

abstract = "Alkyl and alkylperoxy radicals originating from dimethyl ether have been studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over the wavelength range 220-350 nm. At 230 nm, σCH3OCH2 = (4.2 ± 0.5) × 10-18 cm2 molecule-1 has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO2 were determined to be (9.1 ± 1.0) × 10-12 cm3 molecule-1 s-1 and (7.9 ± 0.4) × 10-12 cm3 molecule-1 s-1, respectively.",

author = "Sarka Langer and Evert Ljungstr{\"o}m and Thomas Ellermann and Nielsen, {Ole J.} and Jens Sehested",

year = "1995",

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T1 - UV absorption spectrum of CH3OCH2 radicals and kinetics of the reaction of CH3OCH2O2 radicals with NO and NO2 in the gas phase

AU - Langer, Sarka

AU - Ljungström, Evert

AU - Ellermann, Thomas

AU - Nielsen, Ole J.

AU - Sehested, Jens

PY - 1995/6/23

Y1 - 1995/6/23

N2 - Alkyl and alkylperoxy radicals originating from dimethyl ether have been studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over the wavelength range 220-350 nm. At 230 nm, σCH3OCH2 = (4.2 ± 0.5) × 10-18 cm2 molecule-1 has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO2 were determined to be (9.1 ± 1.0) × 10-12 cm3 molecule-1 s-1 and (7.9 ± 0.4) × 10-12 cm3 molecule-1 s-1, respectively.

AB - Alkyl and alkylperoxy radicals originating from dimethyl ether have been studied in the gas phase at 296 K. A pulse radiolysis-UV absorption technique was used. Absorption cross-sections were quantified over the wavelength range 220-350 nm. At 230 nm, σCH3OCH2 = (4.2 ± 0.5) × 10-18 cm2 molecule-1 has been obtained. Rate constants for the reaction of the alkylperoxy radical with NO and NO2 were determined to be (9.1 ± 1.0) × 10-12 cm3 molecule-1 s-1 and (7.9 ± 0.4) × 10-12 cm3 molecule-1 s-1, respectively.

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U2 - 10.1016/0009-2614(95)00486-N

DO - 10.1016/0009-2614(95)00486-N

M3 - Journal article

AN - SCOPUS:0346547321

SN - 0009-2614

VL - 240

SP - 53

EP - 56

JO - Chemical Physics Letters

JF - Chemical Physics Letters

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