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Reaction of NO~+ in Heterogeneous Water Clusters

机译:非均质水团中NO〜+的反应

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摘要

In the D-region of the lower ionosphere, the reaction NO~+(H_2O)_3 + H_2O → (H_2O_3)_3H~+ + HONO is considered to be an important source of proton hydrates. In an earlier publication (Stace et al. J. Phys. Chem. 1994, 98, 2012), it was shown that ionic clusters of the form NO~+(H_2O)_n could be used as half-collision intermediates in order to demonstrate how effective the above reaction step is at promoting the formation of proton hydrates. Reported here are the results of a new series of complementary experiments, which have studied the reactions of heterogeneous ionic clusters of the form NO~+·(H_2O)_n·X, where X is one of either NH_3, C_2H_5OH, CH_3CN, or (CH_3)_2CO. These experiments have been undertaken in order to explore the influence trace atmospheric species may have on the reaction sequence leading from NO~+ to proton hydrates (PHs) and nonproton hydrates (NPHs). It is shown that most of the above molecules enhance the formation of both NPHs and PHs and that under certain circumstances their presence can introduce new reaction channels.
机译:在电离层下部的D区,NO〜+(H_2O)_3 + H_2O→(H_2O_3)_3H〜+ + HONO反应被认为是质子水合物的重要来源。在较早的出版物中(Stace等人,《化学物理学报》 1994,98,2012),表明NO〜+(H_2O)_n形式的离子簇可以用作半碰撞中间体,以证明上述反应步骤在促进质子水合物形成方面有多有效。这里报告的是一系列新的互补实验的结果,该实验研究了NO〜+·(H_2O)_n·X形式的异质离子簇的反应,其中X是NH_3,C_2H_5OH,CH_3CN或( CH_3)_2CO。进行这些实验是为了探索痕量大气物质可能对从NO〜+到质子水合物(PHs)和非质子水合物(NPHs)的反应顺序的影响。结果表明,上述大多数分子都增强了NPH和PH的形成,在某些情况下,它们的存在会引入新的反应通道。

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