Rate coefficients for the gas-phase reaction CH3CO + O3 → products (1) were measured between 248 and 403 K at 60–200 Torr (N2). Rate coefficients were measured under pseudo-first-order conditions in CH3CO with CH3CO produced by 248 nm pulsed laser photolysis of acetone and monitored using cavity ring-down spectroscopy at 532 nm. Rate coefficients were found to be pressure independent with a weak negative temperature dependence and k1(296 K) = (4.4 ± 0.5) × 10−11 cm3 molecule−1 s−1 where the quoted uncertainties are 2σ and include estimated systematic errors.
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- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, Tamil Nadu, India.
- +91 44 2257 4231
- rajakumar@iitm.ac.in
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Journal Details
1. Kinetic study of the reaction of the acetyl radical, CH3CO, with O3 using cavity ring-down spectroscopy..
Thomasz Gierczak, B.Rajakumar, John E. Flad, James B. Burkholder chem.phys, , 160-164, 484