Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
Phys Chem Chem Phys. 2011 Feb 21;13(7):2758-64. doi: 10.1039/c0cp01609h. Epub 2010 Dec 10.
FTIR smog chamber techniques were used to measure k(Cl + C(2)F(5)CH(2)OCH(3)) = (2.52 ± 0.37) × 10(-11) and k(OH + C(2)F(5)CH(2)OCH(3)) = (5.78 ± 1.02) × 10(-13) cm(3) molecule(-1) s(-1) in 700 Torr of air diluent at 296 ± 1 K. The atmospheric lifetime of C(2)F(5)CH(2)OCH(3) is estimated to be 20 days. Reaction of chlorine atoms with C(2)F(5)CH(2)OCH(3) proceeds 18 ± 2% at the -CH(2)- group and 82 ± 2% at the -CH(3) group. Reaction of OH radicals with C(2)F(5)CH(2)OCH(3) proceeds 44 ± 5% at the -CH(2)- group and 56 ± 5% at the -CH(3) group. The atmospheric fate of C(2)F(5)CH(2)OCH(2)O radicals is reaction with O(2) to give C(2)F(5)CH(2)OCHO. The atmospheric fate of C(2)F(5)CH(O)OCH(3) radicals is C-C bond-cleavage to give C(2)F(5) radicals and CH(3)OCHO (methyl formate). The infrared spectrum was recorded and used to estimate a global warming potential of 6 (100 year time horizon) for C(2)F(5)CH(2)OCH(3).
傅里叶变换红外烟雾箱技术被用于测量在 700 托空气稀释剂中 296 ± 1 K 时的 k(Cl + C(2)F(5)CH(2)OCH(3)) = (2.52 ± 0.37) × 10(-11) 和 k(OH + C(2)F(5)CH(2)OCH(3)) = (5.78 ± 1.02) × 10(-13) cm(3) molecule(-1) s(-1)，C(2)F(5)CH(2)OCH(3) 的大气寿命估计为 20 天。氯原子与 C(2)F(5)CH(2)OCH(3) 的反应在 -CH(2)- 基团进行 18 ± 2%，在 -CH(3) 基团进行 82 ± 2%。OH 自由基与 C(2)F(5)CH(2)OCH(3) 的反应在 -CH(2)- 基团进行 44 ± 5%，在 -CH(3) 基团进行 56 ± 5%。C(2)F(5)CH(2)OCH(2)O 自由基的大气命运是与 O(2)反应生成 C(2)F(5)CH(2)OCHO。C(2)F(5)CH(O)OCH(3) 自由基的大气命运是 C-C 键断裂生成 C(2)F(5) 自由基和 CH(3)OCHO（甲酸甲酯）。记录了红外光谱并用于估计 C(2)F(5)CH(2)OCH(3) 的全球变暖潜能为 6（100 年时间范围）。
