Imino- and bis-imino-pyridines with N-ter-butyl-N-aminoxyl group: synthesis, oxidation and use as ligand towards M2+ ( Mn, Ni, Zn) and Gd3+

Imino- and bis-iminopyridine ligands bearing N-ter-butyl-hydroxy groups were synthesized in order to prepare new Mn2+, Ni2+, Zn2+ and Gd3+ complexes with aminoxy radicals.