Electron-impact luminescence spectra and neutral fragments: Identification of neutral fragments by use of fragment emissions

Abstract

Electron-impact luminescence spectra were measured for cyclohexanol, acetic acid, pyridine, pyrimidine, benzonitrile, aniline, nitrobenzene, p-methoxy-nitrobenzene, 1-chlorobutane, 1-chloropentane, tetrahydrofuran and anisole. The spectra were analyzed and compared with the literature data of mass spectrometry. It was found that fragment emissions of OH(A²Σ⁺-X²Π), CN(B²Σ-X²Σ), NO(B²Π-X²Π) and HCl⁺(A²Σ-X²Π) can be used for the identification of neutral fragments of OH and H₂O, HCN, NO and HCl, respectively.