Synthesis and multinuclear magnetic resonance study of some derivatives of mesoionic 1,2,3,4-thiatriazolo-5-aminide

Article abstract of DOI:10.1016/S0022-2860(97)00360-8

Five derivatives of mesoionic 1,2,3,4-thiatriazolo-5-aminide and its salts were synthesized. The structures of the compounds were examined by ¹H, ¹³C, ¹⁴N and ¹⁵N NMR techniques. The protonation of the compounds occurs on the nitrogen atoms of the exocyclic group; one or two molecules of acid are bonded, depending on the compound structure. The investigated derivatives are supposed to be a chelate type ligand binding metal cation. Some preliminary investigations on compound interaction with metal cation were performed by VIS/UV technique.