UV-visible spectrum of the phenyl radical and kinetics of its reaction with NO in the gas phase
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UV-visible spectrum of the phenyl radical and kinetics of its reaction with NO in the gas phase. / Wallington, T. J.; Egsgaard, H.; Nielsen, O. J.; Platz, J.; Sehested, J.; Stein, T.
I: Chemical Physics Letters, Bind 290, Nr. 4-6, 01.01.1998, s. 363-370.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - UV-visible spectrum of the phenyl radical and kinetics of its reaction with NO in the gas phase
AU - Wallington, T. J.
AU - Egsgaard, H.
AU - Nielsen, O. J.
AU - Platz, J.
AU - Sehested, J.
AU - Stein, T.
PY - 1998/1/1
Y1 - 1998/1/1
N2 - Pulse radiolysis transient UV-visible absorption spectroscopy was used to study the UV-visible absorption spectrum (225-575 nm) of the phenyl radical, C6H5(·), and kinetics of its reaction with NO. Phenyl radicals have a strong broad featureless absorption in the region of 225-340 nm. In the presence of NO phenyl radicals are converted into nitrosobenzene. The phenyl radical spectrum was measured relative to that of nitrosobenzene. Based upon σ(C6H5NO)270 nm = 3.82 × 10-17 cm2 molecule-1 we derive an absorption cross-section for phenyl radicals at 250 nm, σ(C6H5(·))250 nm = (2.75 ± 0.58) × 10-17 cm2 molecule-1. At 295 K in 200-1000 mbar of Ar diluent k(C6H5(·) + NO) = (2.09 ± 0.15) × 10-11 cm3 molecule-1 s-1.
AB - Pulse radiolysis transient UV-visible absorption spectroscopy was used to study the UV-visible absorption spectrum (225-575 nm) of the phenyl radical, C6H5(·), and kinetics of its reaction with NO. Phenyl radicals have a strong broad featureless absorption in the region of 225-340 nm. In the presence of NO phenyl radicals are converted into nitrosobenzene. The phenyl radical spectrum was measured relative to that of nitrosobenzene. Based upon σ(C6H5NO)270 nm = 3.82 × 10-17 cm2 molecule-1 we derive an absorption cross-section for phenyl radicals at 250 nm, σ(C6H5(·))250 nm = (2.75 ± 0.58) × 10-17 cm2 molecule-1. At 295 K in 200-1000 mbar of Ar diluent k(C6H5(·) + NO) = (2.09 ± 0.15) × 10-11 cm3 molecule-1 s-1.
UR - http://www.scopus.com/inward/record.url?scp=0000057128&partnerID=8YFLogxK
U2 - 10.1016/S0009-2614(98)00537-5
DO - 10.1016/S0009-2614(98)00537-5
M3 - Journal article
AN - SCOPUS:0000057128
VL - 290
SP - 363
EP - 370
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 4-6
ER -
ID: 225755328