Synthesis and Characterization of Lanthanoid Complexes with 1,3-Bis(2-pyridylmethyleneamino)-2-propanol

Lanthanoid complexes of a general formula [Ln(appy)(NO3)2]H2O (Ln=La, Pr, Nd, Eu, or Gd) have been synthesized with 1,3-bis(2-pyridylmethyleneamino)-2-propanol (Happy). The complexes were characterized to be mononuclear and of nine-coordination in solid state with quinquedentate appy− and two bidentate NO3− ions. On dissolution in dimethyl sulfoxide, the complexes were shown to dissociate into [Ln(appy)(dmso)n]2+ based on 13C-NMR spectra and molar conductance measurements.