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Inne
Copper(II) complexes of 2,3-dihydroxybenzoic acid.
Autorzy
Rok wydania
1989
Czasopismo
Journal of Coordination Chemistry
Numer woluminu
20
Strony
49-56
DOI
10.1080/00958978909408847
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
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 α 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.
Słowa kluczowe
Copper(II), molecule, 3-dihydroxybenzoic acid, stability constants, oligomers
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