Ionization of Ozone/Chlorofluorocarbon Mixtures in Atmospheric Gases: Formation and Remarkable Dissociation of [CHXYO3]+ Complexes (X= H, Cl, F; Y=Cl, F)

✍ Scribed by Fulvio Cacace; Giulia de Petris; Federico Pepi; Marzio Rosi; Anna Troiani

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 225 KB
• Volume: 6
• Category: Article
• ISSN: 0947-6539
• DOI: 10.1002/1521-3765(20000717)6:14<2572::aid-chem2572>3.0.co;2-p

✦ Synopsis

The reactions occurring upon ionization of mixtures containing ozone and CHX 2 Y (X H, Cl, F; Y Cl, F) halocarbons diluted in atmospheric gases (O 2 , N 2 ) have been investigated in detail by mass spectrometric and theoretical methods. In all systems investigated the reactivity pattern is characterized by the preliminary formation of [CHXY ´O3

] adducts which undergo unimolecular dissociation into HXYO 2 and CO. This remarkable dissociation which requires extensive molecular reorganization is exceptional for hydrogenated halocarbons. The work represents the first systematic study of the ionic chemistry in systems containing both ozone and halocarbons diluted in atmospheric gases.