首页> 外文期刊>Journal of Atmospheric Chemistry >Kinetics of the reactions of Cl atoms with 2-buten-1-ol, 2-methyl-2-propen-l-ol, and 3-methyl-2-buten-1-ol as a function of temperature
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Kinetics of the reactions of Cl atoms with 2-buten-1-ol, 2-methyl-2-propen-l-ol, and 3-methyl-2-buten-1-ol as a function of temperature

机译:Cl原子与2-丁烯-1-醇,2-甲基-2-丙烯-1-醇和3-甲基-2-丁烯-1-醇反应的动力学随温度的变化

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The reactions of three structurally similar unsaturated alcohols, 2-buten-1-ol (crotyl alcohol), 2-methyl-2-propen-l-ol (MPO221) and 3-methyl-2-buten-1-ol (MBO321) with Cl atoms, have been investigated for the first time, using a 400 1 Teflon reaction chamber coupled with gas chromatograph-coupled with flame-ionization detection (GC-FID). The experiments were performed at atmospheric pressure and at temperatures between 255 and 298 K, in air or nitrogen as the bath gas. The obtained kinetic data were used to derive the Arrhenius expressions k_(MPO221) = (3.05 ± 1.40) × 10~(-23) exp (8,760 ± 1,219)/T, k_(crotyl) = (8.85 ± 0.46) × 10~(-21) exp (7,240 ± 1,455)/T, k_(MBO321) = (7.55 ± 0.20) × 10~(-21) exp (7,361 ±735)/T (in units of cm~3 molecule~(-1) s~(-1)). Finally, atmospheric lifetimes of those unsaturated alcohols with respect to OH, NO_3, O_3 and Cl have been calculated.
机译:三种结构相似的不饱和醇,2-丁烯-1-醇(巴豆醇),2-甲基-2-丙烯-1-醇(MPO221)和3-甲基-2-丁烯-1-醇(MBO321)的反应使用400 1 Teflon反应室,结合气相色谱仪和火焰电离检测(GC-FID),首次对含Cl原子的化合物进行了研究。实验是在大气压下,在255和298 K之间的温度下,在空气或氮气中作为浴液进行的。所得动力学数据用于推导Arrhenius表达式k_(MPO221)=(3.05±1.40)×10〜(-23)exp(8,760±1,219)/ T,k_(巴豆基)=(8.85±0.46)×10〜 (-21)exp(7,240±1,455)/ T,k_(MBO321)=(7.55±0.20)×10〜(-21)exp(7,361±735)/ T(cm〜3分子〜(-1 )s〜(-1))。最后,已经计算出这些不饱和醇相对于OH,NO_3,O_3和Cl的大气寿命。

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