Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution

Complexes of yttrium(III) formed with 5-sulphosalicylic acid, 5-SSA (H3L), and 5-nitrosalicylic acid, 5-NSA (H2L), were investigated in 0.1 mol.dm-3 sodium perchlorate ionic medium at 25.0 \pm 0.1 °C potentiometrically for various molar ratios of Y(III) to these salicylic acid, SA (H2L), derivatives. Y(III) forms YL and YL23- type complexes with 5-SSA that have rather high stabilities (log b 1 = 7.91 \pm 0.01 and log b 2 = 14.56 \pm 0.06). In the Y(III):5-NSA system, YL+ and YL2- type complexes appear with high stabilities (log b 1 = 7.39 \pm 0.02 and log b 2 = 13.50 \pm 0.07). Y(III):5-SSA and Y(III):5-NSA complexes exist over a very wide pH range (pH 2.50-11.0) and these SA derivatives are coordinated from salicylate sites (COO- , O). The stabilities of Y(III) complexes formed with 5-NSA and 5-SSA are higher than its SA and 5-hydroxysalicylic acid, 5-HSA (H3L), complexes due to the existences of electron withdrawing groups at the fifth position. The formation constants of Y(III) complexes of SA and SA derivatives are lower than those of their Sc(III) complexes as a result of the smaller ionic potential of Y(III). Due to the higher charge on yttrium Y(III) complexes of SA, 5-NSA and 5-SSA are more stable than Ca(II):SA complex. This result may be utilized for in vitro and in vivo studies, since the ionic radia of Ca(II) and Y(III) are roughly equal.

Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution

Complexes of yttrium(III) formed with 5-sulphosalicylic acid, 5-SSA (H3L), and 5-nitrosalicylic acid, 5-NSA (H2L), were investigated in 0.1 mol.dm-3 sodium perchlorate ionic medium at 25.0 \pm 0.1 °C potentiometrically for various molar ratios of Y(III) to these salicylic acid, SA (H2L), derivatives. Y(III) forms YL and YL23- type complexes with 5-SSA that have rather high stabilities (log b 1 = 7.91 \pm 0.01 and log b 2 = 14.56 \pm 0.06). In the Y(III):5-NSA system, YL+ and YL2- type complexes appear with high stabilities (log b 1 = 7.39 \pm 0.02 and log b 2 = 13.50 \pm 0.07). Y(III):5-SSA and Y(III):5-NSA complexes exist over a very wide pH range (pH 2.50-11.0) and these SA derivatives are coordinated from salicylate sites (COO- , O). The stabilities of Y(III) complexes formed with 5-NSA and 5-SSA are higher than its SA and 5-hydroxysalicylic acid, 5-HSA (H3L), complexes due to the existences of electron withdrawing groups at the fifth position. The formation constants of Y(III) complexes of SA and SA derivatives are lower than those of their Sc(III) complexes as a result of the smaller ionic potential of Y(III). Due to the higher charge on yttrium Y(III) complexes of SA, 5-NSA and 5-SSA are more stable than Ca(II):SA complex. This result may be utilized for in vitro and in vivo studies, since the ionic radia of Ca(II) and Y(III) are roughly equal.

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Kaynak Göster

Bibtex @ { tbtkchem142560, journal = {Turkish Journal of Chemistry}, issn = {1300-0527}, eissn = {1303-6130}, address = {}, publisher = {TÜBİTAK}, year = {2006}, volume = {30}, pages = {145 - 153}, doi = {}, title = {Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution}, key = {cite}, author = {Aydın, Rahmiye and Özer, Ulviye} }
APA Aydın, R , Özer, U . (2006). Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution . Turkish Journal of Chemistry , 30 (2) , 145-153 .
MLA Aydın, R , Özer, U . "Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution" . Turkish Journal of Chemistry 30 (2006 ): 145-153 <
Chicago Aydın, R , Özer, U . "Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution". Turkish Journal of Chemistry 30 (2006 ): 145-153
RIS TY - JOUR T1 - Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution AU - Rahmiye Aydın , Ulviye Özer Y1 - 2006 PY - 2006 N1 - DO - T2 - Turkish Journal of Chemistry JF - Journal JO - JOR SP - 145 EP - 153 VL - 30 IS - 2 SN - 1300-0527-1303-6130 M3 - UR - Y2 - 2021 ER -
EndNote %0 Turkish Journal of Chemistry Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution %A Rahmiye Aydın , Ulviye Özer %T Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution %D 2006 %J Turkish Journal of Chemistry %P 1300-0527-1303-6130 %V 30 %N 2 %R %U
ISNAD Aydın, Rahmiye , Özer, Ulviye . "Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution". Turkish Journal of Chemistry 30 / 2 (Şubat 2006): 145-153 .
AMA Aydın R , Özer U . Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution. Turk J Chem. 2006; 30(2): 145-153.
Vancouver Aydın R , Özer U . Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution. Turkish Journal of Chemistry. 2006; 30(2): 145-153.
IEEE R. Aydın ve U. Özer , "Formation of Yttrium(III) Complexes with Salicylic Acid Derivatives in Aqueous Solution", Turkish Journal of Chemistry, c. 30, sayı. 2, ss. 145-153, Şub. 2006