Pulse radiolysis study of CF3CCI2 and CF3CCI2O2 radicals in the gas phase at 295K
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Pulse radiolysis study of CF3CCI2 and CF3CCI2O2 radicals in the gas phase at 295K. / Wallington, T. J.; Ellermann, T.; Nielsen, OLE J.
I: Research on Chemical Intermediates, Bind 20, Nr. 3-5, 01.01.1994, s. 265-276.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Pulse radiolysis study of CF3CCI2 and CF3CCI2O2 radicals in the gas phase at 295K
AU - Wallington, T. J.
AU - Ellermann, T.
AU - Nielsen, OLE J.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - The ultraviolet absorption spectra and self reaction kinetics of CF3CCI2 and CF3CCI2O2 radicals have been studied in the gas phase at 295K. Absorption cross sections were quantified over the wavelength range 220-300 nm. Measured cross sections near the absorption maxima were γCF3CCI2(230 nm) = (9.70 ± 1.47) x 10-18 and γCF3CCI2O2(250 nm) = (1.70 ± 0.26) x 10-18 cm2 molecule-1. Errors are statistical (2γ) together with our estimate of potential systematic errors. Rate constants for the self reaction of CF3CCI2 and CF3CCI2O2 radicals were measured to be k6 = (2.46 ± 0.43) x 10-12 and k7obs = (3.33 ± 0.53) x 10-12 cm3 molecule-1 s-1, respectively. Results are discussed with respect to the existing database concerning halogenated peroxy radicals.
AB - The ultraviolet absorption spectra and self reaction kinetics of CF3CCI2 and CF3CCI2O2 radicals have been studied in the gas phase at 295K. Absorption cross sections were quantified over the wavelength range 220-300 nm. Measured cross sections near the absorption maxima were γCF3CCI2(230 nm) = (9.70 ± 1.47) x 10-18 and γCF3CCI2O2(250 nm) = (1.70 ± 0.26) x 10-18 cm2 molecule-1. Errors are statistical (2γ) together with our estimate of potential systematic errors. Rate constants for the self reaction of CF3CCI2 and CF3CCI2O2 radicals were measured to be k6 = (2.46 ± 0.43) x 10-12 and k7obs = (3.33 ± 0.53) x 10-12 cm3 molecule-1 s-1, respectively. Results are discussed with respect to the existing database concerning halogenated peroxy radicals.
UR - http://www.scopus.com/inward/record.url?scp=3943097508&partnerID=8YFLogxK
U2 - 10.1163/156856794X00333
DO - 10.1163/156856794X00333
M3 - Journal article
AN - SCOPUS:3943097508
VL - 20
SP - 265
EP - 276
JO - Research on Chemical Intermediates
JF - Research on Chemical Intermediates
SN - 0922-6168
IS - 3-5
ER -
ID: 228192823