JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, cilt.246, ss.323-326, 2000 (SCI İndekslerine Giren Dergi)
Proton-ligand stability constants for some iodo and nitro derivatives of 8-hydroxyquinoline were determined by Calvin Bjerrum potantiometric method. The stability constants of the corresponding chelates with UO2 (II), Th(IV) and Ce(III) were studied potentiometrically at 25 degreesC by applying Irving-Rossotti computing method. The complexes of the nitro-substituted ligands were less stable than the corresponding complexes of the unsubstituted ligands. The stability constants of metal-ligands depend on the ionic radii and ionic charge of metals and also they decrease with steric repulsions of the nitro groups.