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Dobre, Adela F.; Madalan, Augustin M.; Ionescu, Sorana; Hanganu, Anamaria; Lete, Cecilia; Popescu, Codruta C.; Paun, Anca; Matache, Mihaela; Ionita, Petre
Journal of molecular structure, 03/2023, Letnik: 1275Journal Article
•Novel diazenium betaines derived from DPPH synthesized.•New compounds characterized by IR, UV–Vis, CV, NMR, X-ray diffraction, ESR, etc.•Possible diradicaloid behaviour discussed. Starting from the well-known stable free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH), novel diazenium betaines were obtained. These were characterized by NMR, IR, MS, ESR, CV, UV–Vis, and single crystal X-ray diffraction. A discussion about their diradicaloid character is also described.
