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

TY - JOUR

T1 - The reaction of nitromethane with hydrogen and deuterium atoms in the gas phase. A mechanistic study

AU - Lund Thomsen, E.

AU - Nielsen, Ole J.

AU - Egsgaard, Helge

PY - 1993/11/26

Y1 - 1993/11/26

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=43949169182&partnerID=8YFLogxK

U2 - 10.1016/0009-2614(93)89297-U

DO - 10.1016/0009-2614(93)89297-U

M3 - Journal article

AN - SCOPUS:43949169182

SN - 0009-2614

VL - 215

SP - 257

EP - 263

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -