A thermodynamic study of the liquid-liquid extraction of transition metals by calixarene carboxyl derivatives

Fukiko Kubota; Toshikazu Toh; Masahiro Goto; Takahiko Kakoi; Fumiyuki Nakashio

A thermodynamic study of the liquid-liquid extraction of transition metals by calixarene carboxyl derivatives

Fukiko Kubota, Toshikazu Toh, Masahiro Goto, Takahiko Kakoi, Fumiyuki Nakashio

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

Abstract

Extraction of transition metals (Cu²⁺, Zn²⁺, Ni ²⁺ and Co²⁺) by calix[n]arene carboxyl derivatives and their monomer analog dissolved in toluene was performed in the temperature range of 283 to 323K. Thermodynamic parameters such as enthalpy and entropy changes (ΔH and ΔS) were obtained, and the cation exchange extracting properties of the cyclic ligand calixarenes were discussed in comparison with that of the non-cyclic monomer analog from a thermodynamic point of view. The enthalpy-entropy compensation effect on the complexation of metal ions with ligands was also discussed. It was found that calixarenes favorable promote complexation compared to the monomer analog.

Original language	English
Pages (from-to)	75-83
Number of pages	9
Journal	Solvent Extraction Research and Development
Volume	11
Publication status	Published - 2004

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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title = "A thermodynamic study of the liquid-liquid extraction of transition metals by calixarene carboxyl derivatives",

abstract = "Extraction of transition metals (Cu2+, Zn2+, Ni 2+ and Co2+) by calix[n]arene carboxyl derivatives and their monomer analog dissolved in toluene was performed in the temperature range of 283 to 323K. Thermodynamic parameters such as enthalpy and entropy changes (ΔH and ΔS) were obtained, and the cation exchange extracting properties of the cyclic ligand calixarenes were discussed in comparison with that of the non-cyclic monomer analog from a thermodynamic point of view. The enthalpy-entropy compensation effect on the complexation of metal ions with ligands was also discussed. It was found that calixarenes favorable promote complexation compared to the monomer analog.",

author = "Fukiko Kubota and Toshikazu Toh and Masahiro Goto and Takahiko Kakoi and Fumiyuki Nakashio",

year = "2004",

language = "English",

volume = "11",

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journal = "Solvent Extraction Research and Development",

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publisher = "Japan Association of Solvent Extraction",

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T1 - A thermodynamic study of the liquid-liquid extraction of transition metals by calixarene carboxyl derivatives

AU - Kubota, Fukiko

AU - Toh, Toshikazu

AU - Goto, Masahiro

AU - Kakoi, Takahiko

AU - Nakashio, Fumiyuki

PY - 2004

Y1 - 2004

N2 - Extraction of transition metals (Cu2+, Zn2+, Ni 2+ and Co2+) by calix[n]arene carboxyl derivatives and their monomer analog dissolved in toluene was performed in the temperature range of 283 to 323K. Thermodynamic parameters such as enthalpy and entropy changes (ΔH and ΔS) were obtained, and the cation exchange extracting properties of the cyclic ligand calixarenes were discussed in comparison with that of the non-cyclic monomer analog from a thermodynamic point of view. The enthalpy-entropy compensation effect on the complexation of metal ions with ligands was also discussed. It was found that calixarenes favorable promote complexation compared to the monomer analog.

AB - Extraction of transition metals (Cu2+, Zn2+, Ni 2+ and Co2+) by calix[n]arene carboxyl derivatives and their monomer analog dissolved in toluene was performed in the temperature range of 283 to 323K. Thermodynamic parameters such as enthalpy and entropy changes (ΔH and ΔS) were obtained, and the cation exchange extracting properties of the cyclic ligand calixarenes were discussed in comparison with that of the non-cyclic monomer analog from a thermodynamic point of view. The enthalpy-entropy compensation effect on the complexation of metal ions with ligands was also discussed. It was found that calixarenes favorable promote complexation compared to the monomer analog.

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M3 - Article

AN - SCOPUS:33751240081

SN - 1341-7215

VL - 11

SP - 75

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JO - Solvent Extraction Research and Development

JF - Solvent Extraction Research and Development

ER -

A thermodynamic study of the liquid-liquid extraction of transition metals by calixarene carboxyl derivatives

Abstract

All Science Journal Classification (ASJC) codes

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