Kinetics of Cl atom reactions with butadienes including isoprene

The laser photolysis-resonance fluorescence technique was used to determine the rate constants for the reactions of Cl atoms with 1,3-butadiene, 2-methyl-1,3 butadiene (isoprene) and 2,3-dimethyl-1,3-butadiene in the pressure range 15–60 Torr and T=(298±2) K. The obtained rate constants (in units of 10−10 cm3 molecule−1 s−1) were as follows: 1,3-butadiene (3.48±0.10), isoprene (3.61±0.10) and 2,3-dimethyl-1,3-butadiene (3.63±0.14). These kinetic data are discussed.