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Criegee Intermediates: What Direct Production and Detection Can Teach Us About Reactions of Carbonyl Oxides
Annual Review of Physical Chemistry ( IF 14.7 ) Pub Date : 2017-05-02 00:00:00 , DOI: 10.1146/annurev-physchem-052516-050739
Craig A. Taatjes 1
Affiliation  

The carbonyl oxide intermediates in the ozonolysis of alkenes, often known as Criegee intermediates, are potentially important reactants in Earth's atmosphere. For decades, careful analysis of ozonolysis systems was employed to derive an understanding of the formation and reactions of these species. Recently it has proved possible to synthesize at least some of these intermediates separately from ozonolysis, and hence to measure their reaction kinetics directly. Direct measurements have allowed new or more detailed understanding of each type of gas-phase reaction that carbonyl oxides undergo, often acting as a complement to highly detailed ozonolysis experiments. Moreover, the use of direct characterization methods to validate increasingly accurate theoretical investigations can enhance their impact well beyond the set of specific reactions that have been measured. Reactions that initiate particles or fuel their growth could be a new frontier for direct measurements of Criegee intermediate chemistry.

中文翻译:


Criegee中间体:关于羰基氧化物反应的直接生产和检测可以教给我们什么

烯烃的臭氧分解反应中的羰基氧化物中间体(通常称为Criegee中间体)是地球大气中潜在的重要反应物。几十年来,对臭氧分解系统进行了仔细的分析,以了解这些物种的形成和反应。最近,已经证明有可能与臭氧分解分开地合成至少一些这些中间体,并因此直接测量它们的反应动力学。直接测量使人们对羰基氧化物所经历的每种气相反应类型有了新的或更详细的了解,通常是对高度详细的臭氧分解实验的补充。而且,使用直接表征方法来验证日益精确的理论研究可以大大增强其影响,使其超出已测量的一组特定反应。引发粒子或促进其生长的反应可能是直接测量Criegee中间化学的新领域。

更新日期:2017-05-02
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