Abstract
Two new amino acid derivatives of aminophenol ligands with nitrogen and oxygen donor sets were synthesized by the Mannich reaction of cysteine (HLCys), 2-(methylamino)acetic acid (HLMG) with phenol and characterized by IR and 1H NMR spectroscopies. The mononuclear iron(III) complexes of these ligands have been synthesized and characterized by IR, 1H NMR, UV-Vis spectroscopic techniques, ESI-MS, and magnetic susceptibility studies. The molecular mass of each Fe(III) complexes determined by ESI-MS show a molecule with two aminophenolate ligands coordinated to Fe(III). The magnetic susceptibility studies indicate the presence of paramagnetic mononuclear iron(III) complexes.
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