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Başlık: Potentiometric investigations of some catechol derivatives of scandium
Yazarlar: Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü.
Türkel, Naciye
Özer, Ulviye
56630903300
6601993613
Anahtar kelimeler: Chemistry
Acid dissociation-constants
Salicylic-acid
Hydroxyaromatic ligands
Dihydroxybenzoic acids
Aqueous-solution
Complexes
Stabilities
Aluminum
Yttrium(III)
Equilibria
Carboxylic acids
Complexation
Derivatives
Molecular structure
Ph effects
Scandium
Solubility
Catechol derivatives
Ionic medium
Potentiometric investigations
Stability constants
Alcohols
Yayın Tarihi: Mar-2005
Yayıncı: Pleiades Publishing
Atıf: Türkel, N. ve Özer, U. (2005). "Potentiometric investigations of some catechol derivatives of scandium". Russian Journal of Coordination Chemistry, 31(3), 213-217.
Özet: The equilibrium reactions of scandium(III) with some triprotic catechol derivatives (H3L) were studied. The selected ligands that are 2,3-dihydroxybenzoic acid (2,3-DHBA), 3,4-dihydroxybenzoic acid (3,4-DHBA), 3.4-dihydroxyhydrocinnamic acid (3,4-DHHCA), and 3,4-dihydroxyphenylacetic acid (3,4-DHPA) were investigated in aqueous solution by means of potentiometry in 0.1 M ionic medium at 25 degrees C. The stability constants are reported for the ScL and ScL(H2L)(-) mononuclear complexes. 2,3-DHBA can bind to Sc3+ ion strongly and the salicylate mode (COO-, O-) is effective over the acidic pH range. But in higher pH range, 3,4-DHBA, 3,4-DHHCA, and 3,4-DHPA act more efficiently through catecholate groups (O-, O-).
URI: https://doi.org/10.1007/s11173-005-0078-2
https://link.springer.com/article/10.1007%2Fs11173-005-0078-2
http://hdl.handle.net/11452/24072
ISSN: 1070-3284
Koleksiyonlarda Görünür:Scopus
Web of Science

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