FTIR kinetic study of the reactions of γ-caprolactone and γ-heptalactone initiated by Cl and OH radicals at 298 K and atmospheric pressure

Abstract

Rate coefficients were determined for the reactions of the furanones (C6H10O2) (C7H12O2) with OH radicals (k1 and k2) and with Cl atoms (k3 and k4) at 298 K, to be (in cm3 molecule−1 s−1): k1 = (6.4 ± 1.4) × 10−12, k2 = (8.8 ± 1.9) × 10−12, k3 = (1.30 ± 0.41) × 10−10, k4 = (1.70 ± 0.34) × 10−10, respectively. kOH correlates with kCl and SAR show C5 as the favored site of H abstraction.