Kinetic studies of isoprene reactions initiated by chlorine atom Academic Article

abstract

• The degradation reactions of isoprene initiated by chlorine atom were investigated using a fast-flow reactor coupled to chemical ionization mass spectrometry (CIMS) detection. The kinetic studies were performed in the pressure range of 5 to 10 Torr and at 2982 K. The rate constant for the reaction between Cl and isoprene was measured to be (4.00.3)10-10 cm3 molecule-1 s-1. Using the CIMS method, we were able to directly detect the products of the Cl-isoprene reaction, HCl and Cl-isoprene adduct. A branching ratio of (17.44.0)% was determined for the HCl formation. We have also measured the rate constant for the reaction of the Cl-isoprene adduct with molecular oxygen to form the -chloroalkenylperoxy radicals, with a value of (1.00.3)10-14 cm3 molecule-1 s-1. Atmospheric implications of the present experimental results are discussed.

authors

• Zhang, Renyi

published proceedings

• JOURNAL OF PHYSICAL CHEMISTRY A

author list (cited authors)

• Suh, I., & Zhang, R. Y.

citation count

• 28

complete list of authors

• Suh, I||Zhang, RY

publication date

• July 2000

publisher

• American Chemical Society (ACS)  Publisher

published in

• The Journal of Physical Chemistry A: Isolated Molecules, Clusters, Radicals, and Ions; Environmental Chemistry, Geochemistry, and Astrochemistry; Theory  Journal

keywords

• 34 Chemical Sciences
• 3406 Physical Chemistry
• 51 Physical Sciences
• 5102 Atomic, Molecular And Optical Physics

Digital Object Identifier (DOI)

• 10.1021/jp000605h

start page

• 6590

end page

• 6596

volume

• 104

issue

• 28

URL

• http%3A%2F%2Fdx.doi.org%2F10.1021%2Fjp000605h