[IR and Raman spectra of ternary solid complexes of rare earth with alpha-naphthoic acid and 1,10-phenanthroline].

Five ternary solid complexes of rare earth with alpha-naphthoic acid (HNaP) and 1,10-phenanthroline (Phen) were prepared. These complexes all have the composition of RE(Nap)3.phen (RE3+ = Y, La, Eu, Tb, Dy). IR and Raman spectra were investigated. Assignment of complex bands were made by searching group vibration frequencies. Vibrational spectra indicate that carboxylate ions in the alpha-naphthoate take the bidentate coordination modes and the nitrogen atoms in 1,10-phenanthroline are coordinated and format five number chelate ring.