The complex of Dy and Ho with mixture ligand glycine and o-phenanthroline was separated from the ethanol solution. These complexes have been studied by elemental analysis methods, measuring solubility, melting point measurement and IR spectra. The results showed that: These complexes are readily soluble in water, have low melting temperature and IR spectra indicated that: the ions Ln3+ are coordinated by both the oxygen atom of the group COO- and nitrogen atom of the NH3+ group from glycine and two nitrogen atoms from o-phenanthroline. The complexes are composed of Ln(Gly)3PhenCl2.3H2O (Ln: Dy, Ho
Gly: Glycine
Phen: o-phenanthroline).