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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Photoassisted reaction of chemical warfare agent VX droplets under UV light irradiation
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Photoassisted reaction of chemical warfare agent VX droplets under UV light irradiation

机译：紫外线照射下化学战剂VX液滴的光辅助反应

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摘要

A photoassisted reaction of O-ethyl S-[2-(diisopropylamino) ethyl] methylphosphonothioate (VX) droplets in air was carried out. The experimental results indicated that VX droplets could be easily and chemically transformed into other compounds under irradiation of a germicidal lamp over sufficient time. Quantum chemical calculation results demonstrated that UV light less than 278 nm wavelength could possibly initiate photoreaction of VX and that both P-S and P=O bonds in the VX molecule were lengthened. The identification of reaction products by gas and liquid chromatography mass spectroscopy and NMR revealed that the VX molecule in air under UV light irradiation could undergo isomerization of S-esters to C-esters, cleavage of P-S, S-C, and C-N bonds, and ozonation of tertiary amines.
机译：在空气中进行了O-乙基S- [2-（二异丙基氨基）乙基]甲基硫代膦酸酯（VX）液滴的光辅助反应。实验结果表明，在足够长的时间内，在杀菌灯的照射下，VX液滴可以容易地化学转化为其他化合物。量子化学计算结果表明，波长小于278 nm的紫外光可能会引发VX的光反应，并且VX分子中的P-S和P = O键均被延长。通过气相色谱和液相色谱质谱法及NMR鉴定反应产物表明，空气中的VX分子在紫外光照射下可能经历S酯异构化为C酯，PS，SC和CN键断裂以及臭氧的臭氧化反应。叔胺。

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