New experimental evidence to support roaming in the reaction Cl + isobutene (i-C₄H₈).

ABSTRACT: The reaction Cl + isobutene (i-C₄H₈) was reported by Suits et al. to proceed via, in addition to abstraction, an addition-elimination path following a roaming excursion of Cl; a near-zero translational energy release and an isotropic angular distribution observed at a small collision energy characterized this mechanism. We employed a new experimental method to further characterize this roaming mechanism through observation of the internal distribution of HCl (v, J) and their temporal behavior upon irradiation of a mixture of Cl₂C₂O₂ and i-C₄H₈ in He or Ar buffer gas. With 1-3 Torr buffer gas added to approach the condition of small collision energy, the intensities of emission of HCl (v = 1, 2) and the HCl product

SUBMITTER: Chen LW 

PROVIDER: S-EPMC5228202 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature