Mass spectra of 1,2,4-Rriazoles. I. Methyl- and Phenyl-1,2,4-triazoline-5-thiones

Abstract

The mass spectra of the monomethyl and monophenyl derivatives of 1,2,4-triazoline-5-thione are reported and discussed. The fragmentation patterns of these compounds are complex, and the investigation was aided by ²H, ¹⁵N, and ¹⁵N-²H labelling, metastable defocusing, and high-resolution studies.