Novel N-benzimidazolyl-2-thione o-tosylamino(hydroxy)azomethinic tautomeric ligand systems and their metallochelates

Abstract

Novel ligand systems -azomethinic derivatives of 1-amino-3-methyl-1,3-dihydrobenzoimidazole-2-thione and o-tosylamino(hydroxy)benzaldehydes -are synthesized as a result of a multistage procedure and are evaluated. Study of the coordination activity of these compounds has shown that they form complexes ML 2 with transition d-elements containing MN 4 S 2 and MN 2 O 2 S 2 coordination units in solid and in solution. Electrospray mass-spectrometry results show the possibility of formation of M 2 L 2 and M 2 L 3 complexes in the vapor phase.