Differentiation and electron ionization-induced isomerization of 4,5-Bis(alkylthio)-1,3-dithiole-2-thiones and 1,2-dithiole-3-thiones

✍ Scribed by R. Andreu; I. Gayán; J. Garín; J. Orduna; M. Savirón

• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 316 KB
• Volume: 29
• Category: Article
• ISSN: 1076-5174
• DOI: 10.1002/oms.1210290610

✦ Synopsis

The electron impact ionization mass spectra of 4,5-bis(alkylthio)-l,3dithiole-2-thiones and their 1,'tdithiole-3thione isomers were studied by accurate mass measurements and linked scans. The relative abundance of ions formed following the extrusion of S, , CS or CS, allows an unambiguous isomer differentiation. Isomerization of molecular ions was studied by means of metastable ion analysis and collision-induced dissociation. The order of reactivity was analogous to that observed in isomerization under photochemical conditions.