Author/Authors :
Jodkowski، نويسنده , , Jerzy T. and Ratajczak، نويسنده , , Emil and Fagerstrِm، نويسنده , , Kjell and Lund، نويسنده , , Anders and Stothard، نويسنده , , Nigel D. and Humpfer، نويسنده , , Robert and Grotheer، نويسنده , , Horst-Henning، نويسنده ,
Abstract :
For the title reaction, the pressure dependent rate coefficients were studied at 298 K using two complementary experimental techniques. Pulse radiolysis combined with UV absorption was employed at pressures between 500 and 1000 mbar, while a fast-flow system with a quadrupole mass spectrometer (at low ionization energies) was applied at pressures in the range of 0.7–5.1 mbar. The fall-off curve was constructed in terms of Troeʹs analysis, and the following high- and low-pressure limiting rate coefficients were derived: krec,∞ = (1.3 ± 0.3) × 10−10 × (T/300)0.42 cm3 molecule−1 s−1 and krec,0/[He] = (1.8 ± 0.5) × 10−25 × (T/300)−3.85 cm6 molecule−2 s−1.
