Upper limits for the rate constants of the reactions of CF3O2 and CF3O radicals with ozone at 295 K

Ole John Nielsen; Jens Sehested

doi:10.1016/0009-2614(93)89139-9

Upper limits for the rate constants of the reactions of CF₃O₂ and CF₃O radicals with ozone at 295 K

Ole John Nielsen^*, Jens Sehested

^*Corresponding author af dette arbejde

40 Citationer (Scopus)

Abstract

Using the pulse radiolysis UV absorption technique and subsequent simulations of experimental absorption transients at 254 and 276 nm, upper limits of the rate constants for the reactions of CF₃O₂ and CF₃O radicals with ozone were determined at 295 K, CF₃0₂+O₃→CF₃O+2O₂ (4), CF₃O+O₃→CF₃O₂+O₂ (5). The upper limits were derived as k₄<0.5×10^-14 cm³ molecule^-1 s^-1, and k₅<1×10^-13 cm³ molecule^-1 s^-1. Results are discussed in the context of the atmospheric chemistry and ozone depletion by hydrofluorocarbons.

Originalsprog	Engelsk
Tidsskrift	Chemical Physics Letters
Vol/bind	213
Udgave nummer	5-6
Sider (fra-til)	433-441
Antal sider	9
ISSN	0009-2614
DOI	https://doi.org/10.1016/0009-2614(93)89139-9
Status	Udgivet - 15 okt. 1993

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abstract = "Using the pulse radiolysis UV absorption technique and subsequent simulations of experimental absorption transients at 254 and 276 nm, upper limits of the rate constants for the reactions of CF3O2 and CF3O radicals with ozone were determined at 295 K, CF302+O3→CF3O+2O2 (4), CF3O+O3→CF3O2+O2 (5). The upper limits were derived as k4<0.5×10-14 cm3 molecule-1 s-1, and k5<1×10-13 cm3 molecule-1 s-1. Results are discussed in the context of the atmospheric chemistry and ozone depletion by hydrofluorocarbons.",

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T1 - Upper limits for the rate constants of the reactions of CF3O2 and CF3O radicals with ozone at 295 K

AU - Nielsen, Ole John

AU - Sehested, Jens

PY - 1993/10/15

Y1 - 1993/10/15

N2 - Using the pulse radiolysis UV absorption technique and subsequent simulations of experimental absorption transients at 254 and 276 nm, upper limits of the rate constants for the reactions of CF3O2 and CF3O radicals with ozone were determined at 295 K, CF302+O3→CF3O+2O2 (4), CF3O+O3→CF3O2+O2 (5). The upper limits were derived as k4<0.5×10-14 cm3 molecule-1 s-1, and k5<1×10-13 cm3 molecule-1 s-1. Results are discussed in the context of the atmospheric chemistry and ozone depletion by hydrofluorocarbons.

AB - Using the pulse radiolysis UV absorption technique and subsequent simulations of experimental absorption transients at 254 and 276 nm, upper limits of the rate constants for the reactions of CF3O2 and CF3O radicals with ozone were determined at 295 K, CF302+O3→CF3O+2O2 (4), CF3O+O3→CF3O2+O2 (5). The upper limits were derived as k4<0.5×10-14 cm3 molecule-1 s-1, and k5<1×10-13 cm3 molecule-1 s-1. Results are discussed in the context of the atmospheric chemistry and ozone depletion by hydrofluorocarbons.

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U2 - 10.1016/0009-2614(93)89139-9

DO - 10.1016/0009-2614(93)89139-9

M3 - Journal article

AN - SCOPUS:4243643858

SN - 0009-2614

VL - 213

SP - 433

EP - 441

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 5-6

ER -