title: Charged and neutral NO3 isomers from the ionization of NOx and O3 mixtures.
abstract: Mass spectrometric techniques have been utilized in conjunction with theoretical methods to detect and characterize new species formed upon ionization of gaseous mixtures containing ozone and an NOx oxide. NO5+ as well as isomeric NO4+ and NO3+ ions have been identified. Moreover, utilization of neutralization reionization mass spectrometry (NRMS) has provided strong evidence for, if not a conclusive demonstration of, the existence of a new NO3 isomer, in addition to the long-known trigonal radical, as a gaseous species with a lifetime in excess of approximately 1 microsecond.
authors.affiliation: Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive Università La Sapienza, P.le Aldo Moro 5 00185 Roma, Italy.
authors.forename: Fulvio
authors.initials: F
authors.lastname: Cacace
authors.forename: Giulia
authors.initials: G
authors.lastname: de Petris
authors.forename: Marzio
authors.initials: M
authors.lastname: Rosi
authors.forename: Anna
authors.initials: A
authors.lastname: Troiani