Potentiometric, conductimetric, IR, NMR and TGA studies have been carried out on the complexes of trivalent yttrium, lanthanum, praseodymium, neodymium, samarium, gadolinium and erbium with some azo derivatives of 3-hydroxy-2-naphthoic acid. The ionization constants of the reagents and the formation constants of their metal complexes have been determined potentiometrically by Sarin's method. Complexation has also been studied by a conductimetric titration method and the solid complexes formed were separated, analysed and their structures have been elucidated by IR, NMR and TGA studies.
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry