Role of excited CF3CFHO radicals in the atmospheric chemistry of HFC-134a

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Standard

Role of excited CF3CFHO radicals in the atmospheric chemistry of HFC-134a. / Wallington, T. J.; Hurley, M. D.; Fracheboud, J. M.; Orlando, J. J.; Tyndall, G. S.; Sehested, J.; Møgelberg, T. E.; Nielsen, O. J.

I: Journal of Physical Chemistry, Bind 100, Nr. 46, 14.11.1996, s. 18116-18122.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Wallington, TJ, Hurley, MD, Fracheboud, JM, Orlando, JJ, Tyndall, GS, Sehested, J, Møgelberg, TE & Nielsen, OJ 1996, 'Role of excited CF3CFHO radicals in the atmospheric chemistry of HFC-134a', Journal of Physical Chemistry, bind 100, nr. 46, s. 18116-18122.

APA

Wallington, T. J., Hurley, M. D., Fracheboud, J. M., Orlando, J. J., Tyndall, G. S., Sehested, J., Møgelberg, T. E., & Nielsen, O. J. (1996). Role of excited CF3CFHO radicals in the atmospheric chemistry of HFC-134a. Journal of Physical Chemistry, 100(46), 18116-18122.

Vancouver

Wallington TJ, Hurley MD, Fracheboud JM, Orlando JJ, Tyndall GS, Sehested J o.a. Role of excited CF3CFHO radicals in the atmospheric chemistry of HFC-134a. Journal of Physical Chemistry. 1996 nov. 14;100(46):18116-18122.

Author

Wallington, T. J. ; Hurley, M. D. ; Fracheboud, J. M. ; Orlando, J. J. ; Tyndall, G. S. ; Sehested, J. ; Møgelberg, T. E. ; Nielsen, O. J. / Role of excited CF3CFHO radicals in the atmospheric chemistry of HFC-134a. I: Journal of Physical Chemistry. 1996 ; Bind 100, Nr. 46. s. 18116-18122.

Bibtex

@article{1782228be4cb401ba2d9186736ec951c,
title = "Role of excited CF3CFHO radicals in the atmospheric chemistry of HFC-134a",
abstract = "The atmospheric degradation of HFC-134a (CF3CFH2) proceeds via the formation of CF3CFHO radicals. Long path length FTIR environmental chamber techniques were used to study the atmospheric fate of CF3-CFHO radicals. Two competing reaction pathways were identified for CF3CFHO radicals: reaction with O2, CF3CFHO + O2 → CF3C(O)F + HO2, and decomposition via C-C bond scission, CF3CFHO + M → CF3 + HC(O)F + M. CF3CFHO radicals were produced by two different reactions: either via the self-reaction of CF3CFHO2 radicals or via the CF3CFHO2 + NO reaction. It was found that decomposition was much more important when CF3CFHO radicals were produced via the CF3CFHO2 + NO reaction than when they were produced via the self-reaction of CF3CFHO2 radicals. We ascribe this observation to the formation of vibrationally excited CF3CFHO* radicals in the CF3CFHO2 + NO reaction. Rapid decomposition of CF3-CFHO* radicals limits the formation of CF3C(O)F and hence CF3COOH in the atmospheric degradation of HFC-134a. We estimate that the CF3COOH yield from atmospheric oxidation of HFC-134a is 7-20%. Vibrationally excited alkoxy radicals may play an important role in the atmospheric chemistry of other organic compounds.",
author = "Wallington, {T. J.} and Hurley, {M. D.} and Fracheboud, {J. M.} and Orlando, {J. J.} and Tyndall, {G. S.} and J. Sehested and M{\o}gelberg, {T. E.} and Nielsen, {O. J.}",
year = "1996",
month = nov,
day = "14",
language = "English",
volume = "100",
pages = "18116--18122",
journal = "Journal of Physical Chemistry",
issn = "0022-3654",
publisher = "American Chemical Society",
number = "46",

}

RIS

TY - JOUR

T1 - Role of excited CF3CFHO radicals in the atmospheric chemistry of HFC-134a

AU - Wallington, T. J.

AU - Hurley, M. D.

AU - Fracheboud, J. M.

AU - Orlando, J. J.

AU - Tyndall, G. S.

AU - Sehested, J.

AU - Møgelberg, T. E.

AU - Nielsen, O. J.

PY - 1996/11/14

Y1 - 1996/11/14

N2 - The atmospheric degradation of HFC-134a (CF3CFH2) proceeds via the formation of CF3CFHO radicals. Long path length FTIR environmental chamber techniques were used to study the atmospheric fate of CF3-CFHO radicals. Two competing reaction pathways were identified for CF3CFHO radicals: reaction with O2, CF3CFHO + O2 → CF3C(O)F + HO2, and decomposition via C-C bond scission, CF3CFHO + M → CF3 + HC(O)F + M. CF3CFHO radicals were produced by two different reactions: either via the self-reaction of CF3CFHO2 radicals or via the CF3CFHO2 + NO reaction. It was found that decomposition was much more important when CF3CFHO radicals were produced via the CF3CFHO2 + NO reaction than when they were produced via the self-reaction of CF3CFHO2 radicals. We ascribe this observation to the formation of vibrationally excited CF3CFHO* radicals in the CF3CFHO2 + NO reaction. Rapid decomposition of CF3-CFHO* radicals limits the formation of CF3C(O)F and hence CF3COOH in the atmospheric degradation of HFC-134a. We estimate that the CF3COOH yield from atmospheric oxidation of HFC-134a is 7-20%. Vibrationally excited alkoxy radicals may play an important role in the atmospheric chemistry of other organic compounds.

AB - The atmospheric degradation of HFC-134a (CF3CFH2) proceeds via the formation of CF3CFHO radicals. Long path length FTIR environmental chamber techniques were used to study the atmospheric fate of CF3-CFHO radicals. Two competing reaction pathways were identified for CF3CFHO radicals: reaction with O2, CF3CFHO + O2 → CF3C(O)F + HO2, and decomposition via C-C bond scission, CF3CFHO + M → CF3 + HC(O)F + M. CF3CFHO radicals were produced by two different reactions: either via the self-reaction of CF3CFHO2 radicals or via the CF3CFHO2 + NO reaction. It was found that decomposition was much more important when CF3CFHO radicals were produced via the CF3CFHO2 + NO reaction than when they were produced via the self-reaction of CF3CFHO2 radicals. We ascribe this observation to the formation of vibrationally excited CF3CFHO* radicals in the CF3CFHO2 + NO reaction. Rapid decomposition of CF3-CFHO* radicals limits the formation of CF3C(O)F and hence CF3COOH in the atmospheric degradation of HFC-134a. We estimate that the CF3COOH yield from atmospheric oxidation of HFC-134a is 7-20%. Vibrationally excited alkoxy radicals may play an important role in the atmospheric chemistry of other organic compounds.

UR - http://www.scopus.com/inward/record.url?scp=33748481542&partnerID=8YFLogxK

M3 - Journal article

AN - SCOPUS:33748481542

VL - 100

SP - 18116

EP - 18122

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

SN - 0022-3654

IS - 46

ER -

ID: 227487145