Complexing properties of pyrenyl-appended calix[4]arenes towards lanthanides and transition metal cations

Amel Ben Othman; Besma Mellah; Rym Abidi; Jong Seung Kim; Yang Kim; Jacques Vicens

doi:10.1007/s10847-020-00993-0

Complexing properties of pyrenyl-appended calix[4]arenes towards lanthanides and transition metal cations

Amel Ben Othman, Besma Mellah, Rym Abidi, Jong Seung Kim, Yang Kim, Jacques Vicens

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The binding properties of pyrenyl-appended calix[4]arenes 2–4 towards lanthanide and transition metal cations were investigated by spectrophotometric data processing, which indicated that 2 forms mononuclear species with all the cations studied. The extraction power decreased toward ligands 2–3 except Co²⁺, then increased for ligand 4, which reflect the better ability of ligands 2 and 4 to complex and extract at the interface. Derivative 3 formed mono and binuclear species simultaneously with the trivalent cations from La³⁺ to Er³⁺ but only M₂L species with Yb³⁺. In the case of 4, only M₃L was detected for Yb³⁺ and only ML for La³⁺, with the complexation of the other cations tending to form mono-, bi- and tri-nuclear species.

Original language	English
Pages (from-to)	187-194
Number of pages	8
Journal	Journal of Inclusion Phenomena and Macrocyclic Chemistry
Volume	97
Issue number	3-4
DOIs	https://doi.org/10.1007/s10847-020-00993-0
Publication status	Published - 2020 Aug 1

Keywords

Calixarene
Complexation
Extraction
Lanthanide
Stability constant

ASJC Scopus subject areas

Food Science
Chemistry(all)
Condensed Matter Physics

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10.1007/s10847-020-00993-0

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title = "Complexing properties of pyrenyl-appended calix[4]arenes towards lanthanides and transition metal cations",

abstract = "The binding properties of pyrenyl-appended calix[4]arenes 2–4 towards lanthanide and transition metal cations were investigated by spectrophotometric data processing, which indicated that 2 forms mononuclear species with all the cations studied. The extraction power decreased toward ligands 2–3 except Co2+, then increased for ligand 4, which reflect the better ability of ligands 2 and 4 to complex and extract at the interface. Derivative 3 formed mono and binuclear species simultaneously with the trivalent cations from La3+ to Er3+ but only M2L species with Yb3+. In the case of 4, only M3L was detected for Yb3+ and only ML for La3+, with the complexation of the other cations tending to form mono-, bi- and tri-nuclear species.",

keywords = "Calixarene, Complexation, Extraction, Lanthanide, Stability constant",

author = "Othman, {Amel Ben} and Besma Mellah and Rym Abidi and Kim, {Jong Seung} and Yang Kim and Jacques Vicens",

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doi = "10.1007/s10847-020-00993-0",

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T1 - Complexing properties of pyrenyl-appended calix[4]arenes towards lanthanides and transition metal cations

AU - Othman, Amel Ben

AU - Mellah, Besma

AU - Abidi, Rym

AU - Kim, Jong Seung

AU - Kim, Yang

AU - Vicens, Jacques

PY - 2020/8/1

Y1 - 2020/8/1

N2 - The binding properties of pyrenyl-appended calix[4]arenes 2–4 towards lanthanide and transition metal cations were investigated by spectrophotometric data processing, which indicated that 2 forms mononuclear species with all the cations studied. The extraction power decreased toward ligands 2–3 except Co2+, then increased for ligand 4, which reflect the better ability of ligands 2 and 4 to complex and extract at the interface. Derivative 3 formed mono and binuclear species simultaneously with the trivalent cations from La3+ to Er3+ but only M2L species with Yb3+. In the case of 4, only M3L was detected for Yb3+ and only ML for La3+, with the complexation of the other cations tending to form mono-, bi- and tri-nuclear species.

AB - The binding properties of pyrenyl-appended calix[4]arenes 2–4 towards lanthanide and transition metal cations were investigated by spectrophotometric data processing, which indicated that 2 forms mononuclear species with all the cations studied. The extraction power decreased toward ligands 2–3 except Co2+, then increased for ligand 4, which reflect the better ability of ligands 2 and 4 to complex and extract at the interface. Derivative 3 formed mono and binuclear species simultaneously with the trivalent cations from La3+ to Er3+ but only M2L species with Yb3+. In the case of 4, only M3L was detected for Yb3+ and only ML for La3+, with the complexation of the other cations tending to form mono-, bi- and tri-nuclear species.

KW - Calixarene

KW - Complexation

KW - Extraction

KW - Lanthanide

KW - Stability constant

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JO - Journal of Inclusion Phenomena and Macrocyclic Chemistry

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IS - 3-4

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Complexing properties of pyrenyl-appended calix[4]arenes towards lanthanides and transition metal cations

Abstract

Keywords

ASJC Scopus subject areas

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