Abstract

Electron impact dissociative ionization of nitrosyl chloride ( ClNO ) has been studied at the electron beam energy of 200 eV. The dissociation channels of up to triply ionized ClNO are investigated by two- and three-dimensional covariance mapping methods. The absolute cross-sections for the different dissociation channels are measured. No stable ClNO + or ClNO 2+ ions are observed in the mass spectrum. The most possible pathway for the dissociation of ClNO + is ClNO + → NO + + Cl . The total double ionization cross-section of ClNO is found to be 6.3% compared to the total single ionization cross-section. The main ion-pair dissociation channels for ClNO 2+ are ClNO 2+ → N + + O ++ Cl and ClNO 2+ → NO + + Cl +. The ClNO trications dissociate into either an ion pair or an ion triple, with comparable probabilities.

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