Complexation of 2,6-pyridinedicarboxylic and 2,6-pyridinediacetic acids towards aluminium(III) and iron(III)

Bombi, G. Giorgio; Reheman, Aikebaier; Dean, Annalisa; Marco, Valerio Di; Marton, Daniele; Tapparo, Andrea

doi:10.1016/j.poly.2008.10.047

Cited by 22 publications

(40 citation statements)

References 28 publications

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“…In aqueous solution, at 25°C and in the presence of PDC (p K 1 =4.4, p K 2 =2.1, and p K 3 =0.4) 24, aluminum can give different species, notwithstanding hydroxyl complexes. Four hydroxylated aluminum complexes having [Al(OH) n ] as general formula can be formed and their stability constant values are 8.6, 18.0, 26.3, and 32.4 for n =1, 2, 3, and 4, respectively 25.…”

Section: Resultsmentioning

confidence: 99%

“…Depending on pH, the [Al(OH) 3 ] complex can precipitate (p K s =33) 25. According to Bombi 24, four Al(III)/PDC complexes can be present in solution: [Al‐PDC] + , [Al‐PDC 2 ] − , [Al‐PDC‐OH], and [Al‐PDC 2 ‐OH] 2− , with stability constants estimated to 4.7, 7.8, 14.4, and 16.6, respectively. Other species resulting from the complexation of aluminum with chloride or nitrate ions could be present but were not retained, as they do not induce modifications of the speciation diagram.…”

Section: Resultsmentioning

confidence: 99%

“…26 and Bombi et al . 24 beyond pH 5.0–6.0. Napoli did not characterize this precipitate but Bombi demonstrated that it was a 1:1 Al(III)/PDC complex, probably the neutral [Al‐PDC‐OH] form.…”

Section: Resultsmentioning

confidence: 99%

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Simultaneous capillary electrophoretic analysis of inorganic anions and cations in post‐blast extracts of acid–aluminum mixtures

Sarazin

Delaunay

Varenne

et al. 2010

J of Separation Science

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Bursts resulting from the chemical reaction between hydrochloric or nitric acid with aluminum foils are very often committed by the young delinquency in western countries because of its easiness of achievement. A fast, simple, selective, and cost-effective method allowing the simultaneous detection of chloride and nitrate anions and aluminum(III) was thus required. This article focused on the development and validation of a CE method using a BGE containing 2,6-pyridinedicarboxylic acid (PDC) acting as both an anionic chromophore and as an aluminum(III) complexing agent. First, the achievement of the speciation diagram of Al(III) in the presence of PDC allowed the choice of pH conditions for which aluminum(III) was globally anionic. The study of the selectivity for Al(III) in the presence of ten other cationic species potentially present in post-blast residues dictated the choice of the PDC concentration at 20 mM. The validation step next demonstrated the figures of merit of the method, with an intermediate precision for Al(III) of 2% on normalized migration times and 3.5% on corrected areas. Finally, this method was used for analyses of real post-blast extracts from acid-aluminum mixtures.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Simultaneous capillary electrophoretic analysis of inorganic anions and cations in post‐blast extracts of acid–aluminum mixtures

Sarazin

Delaunay

Varenne

et al. 2010

J of Separation Science

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“…Increasing the pH from 3.8 to 8.0, the peaks current of zinc and cadmium decreased. Dipicolinic acid (H 2 X) is a triprotic acid which its pK a values were reported by Di Marco et al [20]. They reported the values < 0.4, 2.1 and 4,383 for pK a1 , pK a2 and pK a3 respectively.…”

Section: Effect Of Phmentioning

confidence: 87%

“…The first deprotonation of H 3 X + is due to the pyridinium and the other two are due to the benzoic groups present in dipicolinic acid. One of the interesting features of H 2 X is its ability to form stable complex with a different metal ions in acidic solution (at pH 4) [20][21][22][23]. In the other hand, at pH 3.8 which is close to third ionization constant (pK a3 ) of H 2 X, formation of metal ion complexes at the surface of the electrode in preconcentration step in the anodic stripping voltammetry are possible.…”

Section: Effect Of Phmentioning

confidence: 99%

Simultaneous Determination of Trace Zinc and Cadmium by Anodic Stripping Voltammetry Using a Polymeric Film Nanoparticle Self‐Assembled Electrode

2010

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A promising modified electrode was fabricated by polymerization a conductive polymer film of dipicolinic acid (DPA) onto gold nanoparticle (AuNP)-cysteine-gold electrode (Au). The morphology of poly(DPA)-AuNP-Au electrode was investigated by scanning electron microscopy (SEM). This chemically modified electrode was used for electrochemical determination of cadmium and zinc in aqueous media using differential pulse anodic stripping voltammetry. The result showed that the modified electrode could clearly resolve the anodic stripping peaks of zinc and cadmium. The linear analytical curves were obtained in the ranges of 0.020-25.0 and 0.045-17.0 mM for zinc and cadmium respectively. The limit of detections (S/N = 3) were 0.008 mM for zinc and 0.015 mM for cadmium.

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Coordination Bonds and Diels–Alder Bonds Dual Crosslinked Polymer Networks of Self‐healing Polyurethane

Lin

Sheng

Liu

et al. 2019

J. Polym. Sci. Part A: Polym. Chem.

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A dual crosslinked self‐healing polyurethane was prepared with robust mechanical properties through the dynamic reversible pyridine‐Fe3+ coordination bonds and Diels–Alder (DA) covalent bonds dual crosslinking strategy. Moreover, the mechanical properties and self‐healing ability of polyurethane can be tuned readily by different ratio of the coordination bonds and DA bonds. Under external load, the coordination bonds serve as sacrificial bonds are broken to dissipate energy, the DA bonds can keep the shape of sample. With the coordination bonds participation, the damaged samples can be healed under moderate heating treatment or with the aid of FeCl3 solution. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 2228–2234

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Complexation of 2,6-pyridinedicarboxylic and 2,6-pyridinediacetic acids towards aluminium(III) and iron(III)

Cited by 22 publications

References 28 publications

Simultaneous capillary electrophoretic analysis of inorganic anions and cations in post‐blast extracts of acid–aluminum mixtures

Simultaneous capillary electrophoretic analysis of inorganic anions and cations in post‐blast extracts of acid–aluminum mixtures

Simultaneous Determination of Trace Zinc and Cadmium by Anodic Stripping Voltammetry Using a Polymeric Film Nanoparticle Self‐Assembled Electrode

Coordination Bonds and Diels–Alder Bonds Dual Crosslinked Polymer Networks of Self‐healing Polyurethane

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