Stabilities of complexes of scandium(III) and yttrium(III) with catechol derivatives

Turkel N., Aydin R., Ozer U.

TURKISH JOURNAL OF CHEMISTRY, vol.23, no.2, pp.139-152, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 2
  • Publication Date: 1999
  • Journal Name: TURKISH JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.139-152
  • Bursa Uludag University Affiliated: Yes

Abstract

The interactions of scandium(III) and yttrium(III) ions with catechol derivatives; catechol(H2L, CAT), 4-nitrocatechol(H2L; 4NCAT) and 2,3-dihydroxynaphthalene- 6-sulphonic acid(H2L, DHN) were investigated in different metal ion:ligand mole ratios, by potentiometry and spectrophotometry. The stoichiometries of formed complexes have been defined by Job's method and formation curves have been drawn for some complexes, whenever possible: The stability contants of the fourteen formed complexes in definite stoichiometries have been determined, in an ionic medium of 0.1M KNO3 or NaClO4 at a temperature of 25 degrees C.