Unsaturated alcohols are emitted in the atmosphere from anthropogenic and biological sources. Although NO radical-initiated reaction of unsaturated alcohols constitute a significant portion to SOA formation, less studies have been reported. In this study, the rate constants of the reactions between NO radicals with 2-methyl-2-propen-1-ol (2M2P1O), (E)-4-hexen-1-ol (t-4H1O) and 4-penten-2-ol (4P2O) were measured at 298 2 K by using relative rate methods. The rate constants were 3.41 0.51 (2M2P1O), 6.45 0.66 (t-4H1O) and 0.56 0.15 (4P2O) (in units of 10 cmmolecules), respectively. The reaction rates were also estimated by structure-activity relationships (SARs) method and compared with the experimental results. It showed that the estimated rate constant of 4-penten-2-ol by SARs was unreasonable due to the lack of group parameters. In addition, large amounts of organic nitrates were identified based on fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). The MS results showed that dinitrates were primary SOA components. The obtained reaction rate constants and the formation mechanisms of organic nitrates provide an important experimental basis for future atmospheric chemical models.

中文翻译：

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不饱和醇和NO3自由基的动力学、产物和机理

不饱和醇通过人为和生物来源排放到大气中。尽管不饱和醇的NO自由基引发的反应构成SOA形成的重要部分，但相关研究报道较少。在这项研究中，NO自由基与2-甲基-2-丙烯-1-醇(2M2P1O)、(E)-4-己烯-1-醇(t-4H1O)和4-戊烯-之间的反应速率常数使用相对速率方法在 298 2 K 下测量 2-ol (4P2O)。速率常数分别为3.41±0.51(2M2P1O)、6.45±0.66(t-4H1O)和0.56±0.15(4P2O)(以10c分子为单位)。还通过构效关系（SAR）方法估算了反应速率，并与实验结果进行了比较。结果表明，由于缺乏群参数，SAR估计的4-戊烯-2-醇速率常数不合理。此外，基于傅里叶变换离子回旋共振质谱（FT-ICR-MS）鉴定出大量有机硝酸盐。 MS 结果表明二硝酸盐是 SOA 的主要成分。获得的反应速率常数和有机硝酸盐的形成机制为未来大气化学模型提供了重要的实验基础。