Atmospheric chemistry of trans-CF3CH = CHF: products and mechanisms of hydroxyl radical and chlorine atom initiated oxidation

Meshkat Sadat Javadi; Roar Søndergaard; Ole John Nielsen; M. D. Hurley; T. J. Wallington

Atmospheric chemistry of trans-CF3CH = CHF: products and mechanisms of hydroxyl radical and chlorine atom initiated oxidation

Meshkat Sadat Javadi, Roar Søndergaard, Ole John Nielsen, M. D. Hurley, T. J. Wallington

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Abstract

Smog chamber/FTIR techniques were used to study the products and mechanisms of OH radical and Cl atom initiated oxidation of trans-CF3CH = CHF in 700 Torr of N-2/O-2 diluent at 295 +/- 1 K. Hydroxyl radical initiated oxidation leads to the formation of CF3CHO and HC(O)F in yields which were indistinguishable from 100% and were not dependent on the O-2 partial pressure. Chlorine atom initiated oxidation gives HC(O)F, CF3CHO, CF3C(O)Cl, and CF3C(O)CHFCl. The yields of CF3C(O)Cl and CF3C(O)CHFCl increased at the expense of HC(O)F and CF3CHO as the O-2 partial pressure was increased over the range 5-700 Torr. The results are discussed with respect to the atmospheric chemistry and environmental impact of trans-CF3CH = CHF.

Original language	English
Journal	Atmospheric Chemistry and Physics
Volume	8
Issue number	12
Pages (from-to)	3141-3147
ISSN	1680-7316
Publication status	Published - 2008
Externally published	Yes

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title = "Atmospheric chemistry of trans-CF3CH = CHF: products and mechanisms of hydroxyl radical and chlorine atom initiated oxidation",

abstract = "Smog chamber/FTIR techniques were used to study the products and mechanisms of OH radical and Cl atom initiated oxidation of trans-CF3CH = CHF in 700 Torr of N-2/O-2 diluent at 295 +/- 1 K. Hydroxyl radical initiated oxidation leads to the formation of CF3CHO and HC(O)F in yields which were indistinguishable from 100% and were not dependent on the O-2 partial pressure. Chlorine atom initiated oxidation gives HC(O)F, CF3CHO, CF3C(O)Cl, and CF3C(O)CHFCl. The yields of CF3C(O)Cl and CF3C(O)CHFCl increased at the expense of HC(O)F and CF3CHO as the O-2 partial pressure was increased over the range 5-700 Torr. The results are discussed with respect to the atmospheric chemistry and environmental impact of trans-CF3CH = CHF.",

author = "Javadi, {Meshkat Sadat} and Roar S{\o}ndergaard and Nielsen, {Ole John} and Hurley, {M. D.} and Wallington, {T. J.}",

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year = "2008",

language = "English",

volume = "8",

pages = "3141--3147",

journal = "Atmospheric Chemistry and Physics",

issn = "1680-7316",

publisher = "Copernicus GmbH",

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TY - JOUR

T1 - Atmospheric chemistry of trans-CF3CH = CHF: products and mechanisms of hydroxyl radical and chlorine atom initiated oxidation

AU - Javadi, Meshkat Sadat

AU - Søndergaard, Roar

AU - Nielsen, Ole John

AU - Hurley, M. D.

AU - Wallington, T. J.

PY - 2008

Y1 - 2008

N2 - Smog chamber/FTIR techniques were used to study the products and mechanisms of OH radical and Cl atom initiated oxidation of trans-CF3CH = CHF in 700 Torr of N-2/O-2 diluent at 295 +/- 1 K. Hydroxyl radical initiated oxidation leads to the formation of CF3CHO and HC(O)F in yields which were indistinguishable from 100% and were not dependent on the O-2 partial pressure. Chlorine atom initiated oxidation gives HC(O)F, CF3CHO, CF3C(O)Cl, and CF3C(O)CHFCl. The yields of CF3C(O)Cl and CF3C(O)CHFCl increased at the expense of HC(O)F and CF3CHO as the O-2 partial pressure was increased over the range 5-700 Torr. The results are discussed with respect to the atmospheric chemistry and environmental impact of trans-CF3CH = CHF.

AB - Smog chamber/FTIR techniques were used to study the products and mechanisms of OH radical and Cl atom initiated oxidation of trans-CF3CH = CHF in 700 Torr of N-2/O-2 diluent at 295 +/- 1 K. Hydroxyl radical initiated oxidation leads to the formation of CF3CHO and HC(O)F in yields which were indistinguishable from 100% and were not dependent on the O-2 partial pressure. Chlorine atom initiated oxidation gives HC(O)F, CF3CHO, CF3C(O)Cl, and CF3C(O)CHFCl. The yields of CF3C(O)Cl and CF3C(O)CHFCl increased at the expense of HC(O)F and CF3CHO as the O-2 partial pressure was increased over the range 5-700 Torr. The results are discussed with respect to the atmospheric chemistry and environmental impact of trans-CF3CH = CHF.

M3 - Journal article

SN - 1680-7316

VL - 8

SP - 3141

EP - 3147

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

IS - 12

ER -

Atmospheric chemistry of trans-CF3CH = CHF: products and mechanisms of hydroxyl radical and chlorine atom initiated oxidation

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