Pyridine N-selenide radical cations: synthesis, characterization, neutralization, and ion–molecule reactions in the gas phase

Abstract

Cyanogen N-selenide radical cations, NCCNSe ·+, react efficiently with neutral pyridine producing the elusive pyridine N-selenide radical cations. The structure of these new distonic ions has been established by high energy collisional activation (CA), neutralization–reionization mass spectrometry, and associative ion–molecule reactions with nitric oxide, methyl isocyanide, pyridine-d 5, dimethyl disulfide, and dimethyl diselenide. These experiments have been performed in a new hybrid mass spectrometer having the sectors–quadrupole–sectors configuration.