Copper(ii) complexes of 2, 3-dihydroxybenzoic acid

Tamas Kiss, Henryk Kozlowski, Giovanni Micera, Liliana Strinna Erre

Research output: Contribution to journalArticle

20 Citations (Scopus)


The interaction of copper(II) with 2, 3-dihydroxybenzoic acid (2, 3-DHB) in aqueous solution has been investigated by means of potcntiometric and spectroscopic (EPR and electronic absorption) measurements. The complex formation equilibria in the Cu(II)-2, 3-DHB system are distinctly different from those already observed with analogous ligands such as 3, 4-DHB and 2, x-DHB (x= 4, 5 and 6) which form catechol- and salicylic-like complexes, respectively. The position of the three binding sites allows 2, 3-DHB to exhibit both the salicylic and catechol coordination types. Besides monomeric species, oligonuclear complexes are formed in which the carboxylate groups are responsible for the metal bridging.

Original languageEnglish
Pages (from-to)49-56
Number of pages8
JournalJournal of Coordination Chemistry
Issue number1
Publication statusPublished - Jun 1 1989


  • 3-dihydroxybenzoic acid stability constants oligomers
  • Copper(II) 2

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry

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