Synthesis and characterization of lanthanide(III) complexes of β-benzoyl and α-phenyl-β-benzoyl propionic acids

Abstract

Synthesis and characterization of lanthanum(III), praseodymium(III), neodymium(III), samarium(III), gadolinium(III),terbium(III), and dysprosium(III) chelates of the type of

M {(RCOO)₃}2H₂O where R=PhCOCH₂CH₂ and PhCOCH₂CHPh are described. The IR data show that the bonding of the carboxylate group to the metal ion is bidendate chelate mode. Coordination number of 6 and 9 is suggested for the rare earth ion in these two series respectively.