Skandiyum(III), İtriyum(III) ve Lantan(III)'ün karışık ligand komplekslerinin sulu ortamdaki kararlılıklarının incelenmesi ve yapılarının aydınlatılması
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Date
2011
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Uludağ Üniversitesi
Abstract
Bu çalışma iki aşamalı olarak gerçekleştirildi. İlk aşamda, Sc(III), Y(III) ve La(III)'ün birincil ligant olarak EDTA (etilendiamintetraasetik asid), HEDTA (N-(2-hidroksietil)etilendiamin-N,N',N'-triasetik asid), NTA (nitrilotriasetik asid)'nın ikincil ligand olarak 2,3-DHBA (2,3-dihidroksi benzoik asit)'nın oluşturduğu komplekslerinin bileşimleri ve oluşum sabitleri 25 ºC, 0,1 M KCl ve 0,1 M NaCl iyonik ortamlarında potansiyometrik yöntem ve BEST bilgisayar programı ile belirlendi.İkinci aşamada kararlılık sabitleri belirlenen kompleksler sentezlendi. Sentezlenen karışık ligant kompleksinin yapısal karakterizasyonu, elementel analiz, AAS, TGA, ICP-OES, IR, 1HNMR, ve 13CNMR spektroskopisi ve iletenlik teknikleri ile aydınlatıldı.
This study was conducted in two stages. In the first stage, the composition and stability constants of mixed ligand complexes of Sc(III), Y(III) and La(III) by using EDTA (ethylenediaminetetraacetic acid), HEDTA (N-(2-hydroxyethyl)ethylenediamine-N,N,N-triacetic acid), NTA (nitrilotriacetic acid) as a primary ligand and 2,3-DHBA (2,3-dihydroxybenzoic acid) as secondary ligand were determined by using a potentiometric method and the BEST computer programme at 25 oC, in a 0.1M KCl and 0.1M NaCl ionic medium.In the second stage, the complexes that the stability constant determined, were isolated. Structural characteristics of synthesized mixed ligand complexes was examined using that elemental analysis, AAS, TGA, ICP-OES, IR, 1HNMR and 13CNMR and the conductivity method.
This study was conducted in two stages. In the first stage, the composition and stability constants of mixed ligand complexes of Sc(III), Y(III) and La(III) by using EDTA (ethylenediaminetetraacetic acid), HEDTA (N-(2-hydroxyethyl)ethylenediamine-N,N,N-triacetic acid), NTA (nitrilotriacetic acid) as a primary ligand and 2,3-DHBA (2,3-dihydroxybenzoic acid) as secondary ligand were determined by using a potentiometric method and the BEST computer programme at 25 oC, in a 0.1M KCl and 0.1M NaCl ionic medium.In the second stage, the complexes that the stability constant determined, were isolated. Structural characteristics of synthesized mixed ligand complexes was examined using that elemental analysis, AAS, TGA, ICP-OES, IR, 1HNMR and 13CNMR and the conductivity method.
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Keywords
Skandiyum(III), İtriyum(III), Lantan(III), Potansiyometri, TGA, IR, 1H ve 13C NMR, Kararlılık sabiti, Karışık ligand kompleksleri, Scandium(III), Yttrium(III), Lanthanium(III), Potentiometry, Stability constant, Mixed ligand complexes
Citation
Çam, T. (2011). Skandiyum(III), İtriyum(III) ve Lantan(III)'ün karışık ligand komplekslerinin sulu ortamdaki kararlılıklarının incelenmesi ve yapılarının aydınlatılması. Yayınlanmamış doktora tezi. Uludağ Üniversitesi Fen Bilimleri Enstitüsü.