Rate coefficients for the chemical reactions of CH₂F₂, CHClF₂, CH₂FCF₃ and CH₃CCl₃ with O(¹D) at 298 K

TY - JOUR

T1 - Rate coefficients for the chemical reactions of CH2F2, CHClF2, CH2FCF3 and CH3CCl3 with O(1D) at 298 K

AU - Nilsson, E.J.K.

AU - Andersen, Vibeke Friis

AU - Nielsen, Ole John

AU - Johnson, Matthew Stanley

PY - 2012/12/3

Y1 - 2012/12/3

N2 - The rate coefficients for the chemical reactions (species loss rates, quenching excluded) of the refrigerants CH 2F 2 (HFC-32), CHClF 2 (HFC-22) and CH 2FCF 3 (HFC-134a), and the solvent CH 3CCl 3 with O( 1D) are determined relative to CH 4 + O( 1D) at 298 K. The resulting rates k(CH 2F 2 + O( 1D)) = (4.78 ± 1.03) × 10 -11 cm 3 molecule -1 s -1, k(CHClF 2 + O( 1D)) = (8.69 ± 1.72) × 10 -11 cm 3 molecule -1 s -1, k(CH 2FCF 3 + O( 1D)) = (6.10 ± 1.43) × 10 -11 cm 3 molecule -1 s -1 are compared to available literature data. The reaction rate of 1,1,1- trichloroethane with O( 1D) is determined for the first time, k(CH 3CCl 3 + O( 1D)) = (2.93 ± 1.20) × 10 -10 cm 3 molecule -1 s -1.

AB - The rate coefficients for the chemical reactions (species loss rates, quenching excluded) of the refrigerants CH 2F 2 (HFC-32), CHClF 2 (HFC-22) and CH 2FCF 3 (HFC-134a), and the solvent CH 3CCl 3 with O( 1D) are determined relative to CH 4 + O( 1D) at 298 K. The resulting rates k(CH 2F 2 + O( 1D)) = (4.78 ± 1.03) × 10 -11 cm 3 molecule -1 s -1, k(CHClF 2 + O( 1D)) = (8.69 ± 1.72) × 10 -11 cm 3 molecule -1 s -1, k(CH 2FCF 3 + O( 1D)) = (6.10 ± 1.43) × 10 -11 cm 3 molecule -1 s -1 are compared to available literature data. The reaction rate of 1,1,1- trichloroethane with O( 1D) is determined for the first time, k(CH 3CCl 3 + O( 1D)) = (2.93 ± 1.20) × 10 -10 cm 3 molecule -1 s -1.

U2 - 10.1016/j.cplett.2012.10.001

DO - 10.1016/j.cplett.2012.10.001

M3 - Journal article

SN - 0009-2614

VL - 554

SP - 27

EP - 32

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -