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Photochemical Properties of CH2═CH-CFCl-CF2Br (4-Bromo-3-chloro-3,4,4-trifluoro-1-butene) and CH3-O-CH(CF3)2 (Methyl Hexafluoroisopropyl Ether): OH Reaction Rate Constants and UV and IR Absorption Spectra
The Journal of Physical Chemistry A ( IF 2.7 ) Pub Date : 2017-07-19 00:00:00 , DOI: 10.1021/acs.jpca.7b04256 Vladimir L. Orkin 1 , Larissa E. Martynova 1 , Michael J. Kurylo 1
The Journal of Physical Chemistry A ( IF 2.7 ) Pub Date : 2017-07-19 00:00:00 , DOI: 10.1021/acs.jpca.7b04256 Vladimir L. Orkin 1 , Larissa E. Martynova 1 , Michael J. Kurylo 1
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Rate constants for the reactions of hydroxyl radicals (OH) with 1,1,1,3,3,3-hexafluoroisopropyl methyl ether (CH3-O-CH(CF3)2) and 4-bromo-3-chloro-3,4,4-trifluoro-1-butene (CH2═CH-CFCl-CF2Br) have been measured over the temperature range 230–370 K to give the following Arrhenius expressions: kCH3OCH(CF3)2(T) = 7.69 × 10–14 × (T/298)2.99 × exp(+342/T), cm3 molecule–1 s–1, and kCH2CHCFClCF2Br(T) = (6.45 ± 0.72) × 10–13 × exp{+(424 ± 32)/T}, cm3 molecule–1 s–1. Atmospheric lifetimes of compounds were estimated to be 67 days and 4.5 days, respectively. UV absorption spectrum of CH2═CH-CFCl-CF2Br between 164 and 260 nm and IR absorption spectra of both compounds between 450 and 1600 cm–1 were measured at room temperature.
中文翻译：
CH的光化学性质2 = CH-CFCL-CF 2溴（4-溴-3-氯-3,4,4-三氟-1-丁烯）和CH 3 -O-CH（CF 3）2（甲基六氟异丙醚）：OH反应速率常数以及UV和IR吸收光谱
羟基（OH）与1,1,1,3,3,3-六氟异丙基甲基醚（CH 3 -O-CH（CF 3）2）和4-溴-3-氯-3反应的速率常数，4,4-三氟-1-丁烯（CH 2 = CH-CFCL-CF 2溴）已在温度范围230-370ķ测量，得到下列表达式阿列纽斯：ķ CH3OCH（CF3）2（Ť）= 7.69×10 –14 ×（T / 298）2.99 ×exp（+ 342 / T），cm 3分子–1 s –1和k CH2CHCFClCF2Br（T）=（6.45±0.72）×10 –13 ×exp {+（424±32）/ T }，cm 3分子–1 s –1。化合物的大气寿命分别估计为67天和4.5天。CH的紫外吸收光谱2 = CH-CFCL-CF 2溴164和260 nm和450和1600厘米两种化合物的IR吸收谱之间-1，在室温下测定的。
更新日期：2017-07-20
中文翻译：
CH的光化学性质2 = CH-CFCL-CF 2溴（4-溴-3-氯-3,4,4-三氟-1-丁烯）和CH 3 -O-CH（CF 3）2（甲基六氟异丙醚）：OH反应速率常数以及UV和IR吸收光谱
羟基（OH）与1,1,1,3,3,3-六氟异丙基甲基醚（CH 3 -O-CH（CF 3）2）和4-溴-3-氯-3反应的速率常数，4,4-三氟-1-丁烯（CH 2 = CH-CFCL-CF 2溴）已在温度范围230-370ķ测量，得到下列表达式阿列纽斯：ķ CH3OCH（CF3）2（Ť）= 7.69×10 –14 ×（T / 298）2.99 ×exp（+ 342 / T），cm 3分子–1 s –1和k CH2CHCFClCF2Br（T）=（6.45±0.72）×10 –13 ×exp {+（424±32）/ T }，cm 3分子–1 s –1。化合物的大气寿命分别估计为67天和4.5天。CH的紫外吸收光谱2 = CH-CFCL-CF 2溴164和260 nm和450和1600厘米两种化合物的IR吸收谱之间-1，在室温下测定的。
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