Cupric complexes with 3,4-dihydroxybenzoic acid

Krystyna Gerega, Henryk Kozłowski, Tamas Kiss, Giovanni Micera, Liliana Strinna Erre, Franco Cariati

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22 Citations (Scopus)


Potentiometric and spectroscopic results indicated that 3,4-dihydroxybenzoic acid is a very effective ligand for cupric ions and the coordination equilibria formed are relatively complicated. In dilute aqueous solutions the bidentate catechol part of the ligand studied predominates as the binding site for metal ion although the carboxyl group may also participate in the metal ion binding leading to creation of the dinuclear species. More concentrated solutions yield a trimeric complex molecule (Cu3A2) with one metal ion bound to four phenolate oxygens and two others bound to the respective carboxylates.

Original languageEnglish
Pages (from-to)31-34
Number of pages4
JournalInorganica Chimica Acta
Issue number1
Publication statusPublished - Sep 1987

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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  • Cite this

    Gerega, K., Kozłowski, H., Kiss, T., Micera, G., Strinna Erre, L., & Cariati, F. (1987). Cupric complexes with 3,4-dihydroxybenzoic acid. Inorganica Chimica Acta, 138(1), 31-34.