Interactions of trivalent lanthanide cations with a hexadentate Schiff base derived from the condensation of ethylenediamine with 8-hydroxyquinoline-2-carboxaldehyde

Arslan, Taner; Öğretır, Cemi̇l; Tsiouri, Mantha; Plakatouras, John C.; Hadjiliadis, Nick

doi:10.1080/00958970600884148

Cited by 15 publications

(5 citation statements)

References 31 publications

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“…On the basis of the previous considerations, in this study, we used a new chelating agent, 8‐hydroxyquinoline‐2‐carboxaldehyde (HQC), to synthesize a CS Schiff‐base compound. It is well‐known from the literature that Schiff‐base ligands synthesized from HQC have a strong ability to form metal complexes with Cu(II) and other metal ions . To our knowledge, this is the first report on the preparation of a CS Schiff base with HQC and its application for removing Cu(II) from aqueous solutions.…”

Section: Introductionmentioning

confidence: 93%

Synthesis and characterization of a chitosan ligand for the removal of copper from aqueous media

Reddy

Lee

2013

J of Applied Polymer Sci

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A novel chitosan derivative, 8‐hydroxyquinioline‐2‐carboxaldehydechitosan (CSHQ) Schiff base, was synthesized by a simple condensation process. The structure of the resulting product was confirmed by Fourier transform infrared spectroscopy, solid‐state 13C‐NMR, differential scanning calorimetry, scanning electron microscopy, and energy‐dispersive X‐ray spectroscopy. Further, the synthesized CSHQ Schiff base was used as an adsorbent for the removal of Cu(II) from aqueous solution. The adsorption of Cu(II) onto CSHQ was strongly dependent on the pH value, and the optimum pH value obtained was pH 5. Among the pseudo‐first‐order (PFO), pseudo‐second‐order (PSO), and intraparticle diffusion model simulation, the experimental data followed PSO kinetics well. The Cu(II) adsorption process onto CSHQ obeyed the Langmuir isotherm model well rather than the Freundlich and Sips isotherm models; this suggested that a monolayer adsorption occurred on the surface of CSHQ. From the overall results, we found that Cu(II) was adsorbed onto CSHQ through oxygen, nitrogen and pyridine nitrogen donor atoms and that CSHQ could be a promising adsorbent for water treatment. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 4542–4550, 2013

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Section: Introductionmentioning

confidence: 93%

Synthesis and characterization of a chitosan ligand for the removal of copper from aqueous media

Reddy

Lee

2013

J of Applied Polymer Sci

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“…The ability of the lanthanide cations to promote Schiff base condensation of the appropriate diamine and dicarbonyl precursors, giving access to acyclic and macrocyclic complexes of otherwise inaccessible ligands in combination with the applications of lanthanide complexes emerging from biology and medicine have boosted research on these areas 10,11 . In this regard Schiff base metal complexes have played a key role to the gradual development of the Ln(III) coordination chemistry, ranging from pure synthetic work to modern physicochemical and biochemically relevant studies of metal complexes 12,13 .…”

Section: Introductionmentioning

confidence: 99%

Pentadentate N2O3 Schiff Base Complexes of Rare Earth Metals

Abid¹

2013

AJAC

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Acyclic Schiff base ligand containing N 2 O 3 donor atoms was synthesized by the reaction of 2,6-diformyl-4-ter-butylphenol and 4-aminoantipyrine in 1:2 molar ratio. The synthesized ligand (H 1 L) and Ln(III) complexes [Ln= LaIII, CeIII and GdIII] were characterized by 1 HN.M.R., 13 CN.M.R., mass spectrometry, UV /Visible, FTIR, Elemental analysis (C.H.N.), Magnetic susceptibility and Molar conductivity measurements. A seven coordinated complex obtained through N 2 O 3 and two chloride atoms coordinated to metal ions.

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“…Tailoring, with major goal to increase the stability of lanthanide complexes, of new ligands based on the Schiff base described here and previously [18–22] is in progress.…”

Section: Resultsmentioning

confidence: 95%

“…In a previous work, the utilization of 8-hydroxyquinoline-2-carboxaldehyde for the preparation of Schiff bases leads to products with poor solubility [22]. The next step in our research is to elongate the diamine part of the above-mentioned ligands, incorporating donor atoms, and study the structure and the stability of the prepared complexes.…”

Section: Introductionmentioning

confidence: 99%

Interactions of Trivalent Lanthanide Cations with a New Hexadentate Di‐Schiff Base: New Lanthanide(III) Complexes from (NE,N^′E)‐2,2^′‐(ethane‐1,2‐diylbis(oxy))bis(N‐(pyridin‐2‐ylmethylene)ethanamine)

Tsiouri

Skorda

Papadimitriou

et al. 2010

Bioinorganic Chemistry and Applications

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The novel lanthanide(III) complexes [Ln(NO3)2L](NO3)·3MeOH (Ln = La 1, Pr 2) and [Ln(NO3)3L](NO3)·2MeOH (Ln = Gd 3, Yb 4), where L = (NE,N′E)-2,2′-(ethane-1,2-diylbis(oxy))bis(N-(pyridin-2-ylmethylene)ethanamine), have been obtained by direct reaction of the Schiff base ligand and the corresponding hydrated lanthanide(III) nitrates in methanol. All complexes were characterized spectroscopically and thermogravimetrically. Complex 4 was also characterized with crystallographic studies: orthorhombic P212121, a = 10.6683(14), b = 13.4752(15), c = 19.3320(26) Å. In the molecular structure of 4, Yb(III) is surrounded by all donor atoms of the Schiff base (four nitrogen and two oxygen atoms) and four oxygen atoms belonging to two bidentate chelating nitrato ligands.

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Interactions of trivalent lanthanide cations with a hexadentate Schiff base derived from the condensation of ethylenediamine with 8-hydroxyquinoline-2-carboxaldehyde

Cited by 15 publications

References 31 publications

Synthesis and characterization of a chitosan ligand for the removal of copper from aqueous media

Synthesis and characterization of a chitosan ligand for the removal of copper from aqueous media

Pentadentate N2O3 Schiff Base Complexes of Rare Earth Metals

Interactions of Trivalent Lanthanide Cations with a New Hexadentate Di‐Schiff Base: New Lanthanide(III) Complexes from (NE,N^′E)‐2,2^′‐(ethane‐1,2‐diylbis(oxy))bis(N‐(pyridin‐2‐ylmethylene)ethanamine)

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Interactions of trivalent lanthanide cations with a hexadentate Schiff base derived from the condensation of ethylenediamine with 8-hydroxyquinoline-2-carboxaldehyde

Cited by 15 publications

References 31 publications

Synthesis and characterization of a chitosan ligand for the removal of copper from aqueous media

Synthesis and characterization of a chitosan ligand for the removal of copper from aqueous media

Pentadentate N2O3 Schiff Base Complexes of Rare Earth Metals

Interactions of Trivalent Lanthanide Cations with a New Hexadentate Di‐Schiff Base: New Lanthanide(III) Complexes from (NE,N′E)‐2,2′‐(ethane‐1,2‐diylbis(oxy))bis(N‐(pyridin‐2‐ylmethylene)ethanamine)

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Interactions of Trivalent Lanthanide Cations with a New Hexadentate Di‐Schiff Base: New Lanthanide(III) Complexes from (NE,N^′E)‐2,2^′‐(ethane‐1,2‐diylbis(oxy))bis(N‐(pyridin‐2‐ylmethylene)ethanamine)