Determination of UO2(II), Th(IV) and Ce(III) complexes formed with halogen and nitro derivatives of 8-hydroxyquinoline


Teksoz S. , Unak P.

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, cilt.246, ss.323-326, 2000 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 246 Konu: 2
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1023/a:1006726625181
  • Dergi Adı: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • Sayfa Sayısı: ss.323-326

Özet

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.