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The reaction of nitromethane with hydrogen and deuterium atoms in the gas phase. A mechanistic study

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The mechanism of the reaction between H and CH3NO2, has been studied in a discharge flow system using electron paramagnetic resonance and modulated molecular beam mass spectrometry for the detection of reactants and products. Deuterium atoms have, in addition to CD3NO2, been used to support the proposed reaction mechanism. The reaction was studied with the atomic reactant in slight excess at 298 K and a total pressure of 2 Torr. Two concurrent reaction channels: (1a) H+CH3NO2→HONO+{radical dot}CH3 and (1b) H+CH3NO2→CH3NO+{radical dot}OH were observed. The branching ratio, k1a/(k1a+k1b), is 0.7±0.2.

OriginalsprogEngelsk
TidsskriftChemical Physics Letters
Vol/bind215
Udgave nummer1-3
Sider (fra-til)257-263
Antal sider7
ISSN0009-2614
DOI
StatusUdgivet - 26 nov. 1993

ID: 228194846