CHF2OCHF2 (HFE-134): IR spectrum and kinetics and products of the chlorine-atom-initiated oxidation

Mads P Sulbaek Andersen; Michael D Hurley; Vibeke F Andersen; Ole J Nielsen; Timothy J Wallington

doi:10.1021/jp101507f

CHF2OCHF2 (HFE-134): IR spectrum and kinetics and products of the chlorine-atom-initiated oxidation

J Phys Chem A. 2010 Apr 15;114(14):4963-7. doi: 10.1021/jp101507f.

Authors

Mads P Sulbaek Andersen¹, Michael D Hurley, Vibeke F Andersen, Ole J Nielsen, Timothy J Wallington

Affiliation

¹ Department of Chemistry, 572 Rowland Hall, University of California Irvine, Irvine, California 92697-2025, USA. mads@sulbaek.dk

PMID: 20302286
DOI: 10.1021/jp101507f

Abstract

Smog chamber/FTIR techniques were used to measure k(Cl + CHF(2)OCHF(2)) = (5.7 +/- 1.5) x 10(-16) cm(3) molecule(-1) s(-1) in 700 Torr of N(2)/O(2) diluent at 296 +/- 1 K. This result is 100 times lower than the previous literature value. The chlorine-atom-initiated atmospheric oxidation of CHF(2)OCHF(2) gives COF(2) in a molar yield of (185 +/- 22) %. The IR spectrum was recorded, and a radiative efficiency of 0.44 W m(-2) ppb(-1) was determined. The results are discussed with respect to the atmospheric chemistry and environmental impact of CHF(2)OCHF(2).