Author/Authors :
J. and Chastaing، نويسنده , , Delphine and Le Picard، نويسنده , , Sébastien D. and Sims، نويسنده , , Ian R. and Smith، نويسنده , , Ian W.M. and Geppert، نويسنده , , Wolf D. and Naulin، نويسنده , , Christian and Costes، نويسنده , , Michel، نويسنده ,
Abstract :
The reactivity of C(3PJ) atoms towards methylacetylene and allene has been investigated using complementary experimental methods. Kinetic measurements performed over the range T=15–295 K have yielded thermal rate coefficients: (2.7±0.6)×10−10(T/298 K)−(0.11±0.07) and (3.5±0.8)×10−10(T/298 K)−(0.01±0.12) cm3 molecule−1 s−1, respectively. Crossed beam experiments conducted in the range of relative translational energies εtr=4.9–282 meV have yielded integral cross-sections for H(2S1/2) production that are proportional to (εtr)−0.56±0.02 and (εtr)−0.55±0.01, respectively, in excellent agreement with the temperature dependencies of the rate coefficients.
