Potentiometric and Spectroscopic Studies on Yttrium(III) Complexes of Dihydroxybenzoic Acids

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概要

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• The equilibrium reactions of yttrium(III) ion with dihydroxybenzoic acids (2,3-dihydroxybenzoic acid (2,3-DHBA) and 3,4-dihydroxybenzoic acid (3,4-DHBA)) (H_3L) were investigated in aqueous solution by means of potentiometric and spectroscopic methods, in 0.1 mol・1^<-1> ionic strength medium at 25℃. The stability constants are reported for YL, YL(HL)^<2-> and YL^<3->_2 - type mononuclear complexes. 2,3-DHBA can bind Y(III) ion strongly and the salicylate mode is effective over the acidic pH range. But in higher pH range, 2,3-DHBA and 3,4-DHBA act more efficiently through catecholate groups. The complexes of 2,3-DHBA are more stable than the complexes of 3,4-DHBA.

• 公益社団法人日本薬学会の論文
• 2004-01-01

著者

• Oezer U

  Uludag University Faculty Of Arts And Sciences Department Of Chemistry

• AYDIN Rahmiye

  Uludag University, Faculty of Arts and Sciences, Department of Chemistry

• OZER Ulviye

  Uludag University, Faculty of Arts and Sciences, Department of Chemistry

• Aydin Rahmiye

  Uludag University Faculty Of Arts And Sciences Department Of Chemistry

関連論文

• Potentiometric and Spectroscopic Studies on Yttrium(III) Complexes of Dihydroxybenzoic Acids

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