Pulse radiolysis study of CF3CFHO2 radicals in the gas phase at 298 K

Timothy J. Wallington; Ole J. Nielsen

doi:10.1016/0009-2614(91)90480-W

Pulse radiolysis study of CF₃CFHO₂ radicals in the gas phase at 298 K

Timothy J. Wallington^*, Ole J. Nielsen

^*Corresponding author for this work

53 Citations (Scopus)

Abstract

The ultraviolet absorption spectrum of the CF₃CHFO₂ radical, and the kinetics of its reaction with NO, have been studied in the gas phase at 298 K. Absorption cross sections were quantified over the wavelength range 220-290 nm. The measured cross section at 220 nm is σ_CF₃CHFO₂ (220 nm) = (5.34±1.08)×10^-18 cm² molecule^-1. Errors represent statistical (2σ) and our estimate of potential systematic errors (15%). The rate constant for the reaction of CF₃CFHO₂ radicals with NO was then determined to be k₆=(1.28±0.36)×10^-11 cm³ molecule^-1 s^-1. Errors represent statistical (2σ) and our estimate of potential systematic errors (20%). As part of this work the rate constant for the reaction of F atoms with CF₃CFH₂ was measured and found to be (3.6±0.9)×10 ^-12 cm³ molecules^-1s^-1 at 298 K. Errors are 2σ.

Original language	English
Journal	Chemical Physics Letters
Volume	187
Issue number	1-2
Pages (from-to)	33-39
Number of pages	7
ISSN	0009-2614
DOIs	https://doi.org/10.1016/0009-2614(91)90480-W
Publication status	Published - 29 Nov 1991

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@article{c4afd7e946eb40d8a45f4c9be293be16,

title = "Pulse radiolysis study of CF3CFHO2 radicals in the gas phase at 298 K",

abstract = "The ultraviolet absorption spectrum of the CF3CHFO2 radical, and the kinetics of its reaction with NO, have been studied in the gas phase at 298 K. Absorption cross sections were quantified over the wavelength range 220-290 nm. The measured cross section at 220 nm is σCF3CHFO2 (220 nm) = (5.34±1.08)×10-18 cm2 molecule-1. Errors represent statistical (2σ) and our estimate of potential systematic errors (15%). The rate constant for the reaction of CF3CFHO2 radicals with NO was then determined to be k6=(1.28±0.36)×10-11 cm3 molecule-1 s-1. Errors represent statistical (2σ) and our estimate of potential systematic errors (20%). As part of this work the rate constant for the reaction of F atoms with CF3CFH2 was measured and found to be (3.6±0.9)×10 -12 cm3 molecules-1s-1 at 298 K. Errors are 2σ.",

author = "Wallington, {Timothy J.} and Nielsen, {Ole J.}",

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T1 - Pulse radiolysis study of CF3CFHO2 radicals in the gas phase at 298 K

AU - Wallington, Timothy J.

AU - Nielsen, Ole J.

PY - 1991/11/29

Y1 - 1991/11/29

N2 - The ultraviolet absorption spectrum of the CF3CHFO2 radical, and the kinetics of its reaction with NO, have been studied in the gas phase at 298 K. Absorption cross sections were quantified over the wavelength range 220-290 nm. The measured cross section at 220 nm is σCF3CHFO2 (220 nm) = (5.34±1.08)×10-18 cm2 molecule-1. Errors represent statistical (2σ) and our estimate of potential systematic errors (15%). The rate constant for the reaction of CF3CFHO2 radicals with NO was then determined to be k6=(1.28±0.36)×10-11 cm3 molecule-1 s-1. Errors represent statistical (2σ) and our estimate of potential systematic errors (20%). As part of this work the rate constant for the reaction of F atoms with CF3CFH2 was measured and found to be (3.6±0.9)×10 -12 cm3 molecules-1s-1 at 298 K. Errors are 2σ.

AB - The ultraviolet absorption spectrum of the CF3CHFO2 radical, and the kinetics of its reaction with NO, have been studied in the gas phase at 298 K. Absorption cross sections were quantified over the wavelength range 220-290 nm. The measured cross section at 220 nm is σCF3CHFO2 (220 nm) = (5.34±1.08)×10-18 cm2 molecule-1. Errors represent statistical (2σ) and our estimate of potential systematic errors (15%). The rate constant for the reaction of CF3CFHO2 radicals with NO was then determined to be k6=(1.28±0.36)×10-11 cm3 molecule-1 s-1. Errors represent statistical (2σ) and our estimate of potential systematic errors (20%). As part of this work the rate constant for the reaction of F atoms with CF3CFH2 was measured and found to be (3.6±0.9)×10 -12 cm3 molecules-1s-1 at 298 K. Errors are 2σ.

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DO - 10.1016/0009-2614(91)90480-W

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SN - 0009-2614

VL - 187

SP - 33

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-2

ER -

Pulse radiolysis study of CF₃CFHO₂ radicals in the gas phase at 298 K

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