Isotope Exchange in Ionized O3/O2 Mixtures: The Role of O5+, a Unique On+ Complex

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• 作者：Fulvio Cacace ; Romano Cipollini ; Giulia de Petris ; Federico Pepi ; Marzio Rosi ; and Antonio Sgamellotti
• 刊名：Inorganic Chemistry
• 出版年：1998
• 出版时间：March 23, 1998
• 年：1998
• 卷：37
• 期：6
• 页码：1398 - 1400
• 全文大小：51K
• 年卷期：v.37,no.6(March 23, 1998)
• ISSN：1520-510X

文摘

A hitherto unknown reaction, the isotope exchange between oxygenand ozone, accompanies formation of thelatter upon ionization of O₂ or air, a long-known processwidely utilized for the production of ozone and of greatrelevance to atmospheric chemistry. The isotope exchange wasdemonstrated and its mechanism established bymass spectrometric techniques that allowed identification of thecharged intermediate, the O₅⁺ ion,characterizedby the joint application of theoretical and experimental methods astruly unique among all known O_n⁺complexes.The results are of interest to atmospheric chemistry, bearing onthe problem related to the widely different extentof ¹⁸O enrichment of ozone in the stratosphere and in thetroposphere.