Abstract
The electrochemical syntheses of series of novel adducts of 2-aminopyridine and methanol in Co(II), Ni(II), Cu(II) or Zn(II) chelates of the N,N,N-tridentate basic form of the Schiff base 2- N-tosylamino(2′-tosylaminobenzylidene)aniline (H 2L), [M(L)L′] (M=Co, Ni, Zn, L′=2-aminopyridine; M=Cu, L′=CH 3OH), were performed by using the corresponding metal as a sacrificial anode. The compounds were characterized by elemental analysis, IR spectroscopy, FAB mass spectrometry, 1H NMR and magnetic measurements. The crystal structures of the Zn and Ni derivatives as well as of the Schiff base have been determined by X-ray diffraction. In the 2-aminopyridine complexes this ligand is bound to the metal through the endocyclic nitrogen whereas the aminogroup is involved in intramolecular NH⋯O hydrogen bonds with one of the tosyl SO 2 groups.
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