Separation of lanthanides and actinides using magnetic silica particles bearing covalently attached tetra-CMPO-calix[4]arenes

Volker Böhmer; Jean-François Dozol; Cordula Gruttner; Karine Liger; Susan E. Matthews; Sandra Rudershausen; Mohamed Saadioui; Pingshan Wang

doi:10.1039/b405602g

Separation of lanthanides and actinides using magnetic silica particles bearing covalently attached tetra-CMPO-calix[4]arenes

Volker Böhmer, Jean-François Dozol, Cordula Gruttner, Karine Liger, Susan E. Matthews, Sandra Rudershausen, Mohamed Saadioui, Pingshan Wang

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

27 Citations (Scopus)

Abstract

Calix[4] arene tetraethers in the cone conformation bearing four-NH-CO-CH2-P(O)Ph-2(=CMPO) residues on their wide rim and one, two or four omega-amino alkyl residues of various lengths at the narrow rim were synthesized. Reaction with dichlorotriazinyl (DCT) functionalized magnetic particles led to complete coverage of the available surface by covalently linked CMPO-calix[4] arenes in all cases. Magnetically assisted removal of Eu(III) and Am(III) from acidic solutions was distinctly more efficient with these particles in comparison to analogous particles bearing the same amount of analogous single-chain CMPO-functions. The best result, an increase of the extraction efficiency by a factor of 140-160, was obtained for attachment via two propyl spacers. The selectivity Am/Eu was in the range of 1.9-2.8. No decrease of the extraction ability was observed, when the particles were repeatedly used, after simple back extraction with water.

Original language	English
Pages (from-to)	2327-2334
Number of pages	8
Journal	Organic & Biomolecular Chemistry
Volume	2
Issue number	16
DOIs	https://doi.org/10.1039/b405602g
Publication status	Published - 2004

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10.1039/b405602g

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@article{a119187b911542c099c1e056aff8a15a,

title = "Separation of lanthanides and actinides using magnetic silica particles bearing covalently attached tetra-CMPO-calix[4]arenes",

abstract = "Calix[4] arene tetraethers in the cone conformation bearing four-NH-CO-CH2-P(O)Ph-2(=CMPO) residues on their wide rim and one, two or four omega-amino alkyl residues of various lengths at the narrow rim were synthesized. Reaction with dichlorotriazinyl (DCT) functionalized magnetic particles led to complete coverage of the available surface by covalently linked CMPO-calix[4] arenes in all cases. Magnetically assisted removal of Eu(III) and Am(III) from acidic solutions was distinctly more efficient with these particles in comparison to analogous particles bearing the same amount of analogous single-chain CMPO-functions. The best result, an increase of the extraction efficiency by a factor of 140-160, was obtained for attachment via two propyl spacers. The selectivity Am/Eu was in the range of 1.9-2.8. No decrease of the extraction ability was observed, when the particles were repeatedly used, after simple back extraction with water.",

author = "Volker B{\"o}hmer and Jean-Fran{\c c}ois Dozol and Cordula Gruttner and Karine Liger and Matthews, {Susan E.} and Sandra Rudershausen and Mohamed Saadioui and Pingshan Wang",

year = "2004",

doi = "10.1039/b405602g",

language = "English",

volume = "2",

pages = "2327--2334",

journal = "Organic & Biomolecular Chemistry",

issn = "1477-0520",

publisher = "Royal Society of Chemistry",

number = "16",

}

Separation of lanthanides and actinides using magnetic silica particles bearing covalently attached tetra-CMPO-calix[4]arenes. / Böhmer, Volker; Dozol, Jean-François; Gruttner, Cordula; Liger, Karine; Matthews, Susan E.; Rudershausen, Sandra; Saadioui, Mohamed; Wang, Pingshan.

In: Organic & Biomolecular Chemistry, Vol. 2, No. 16, 2004, p. 2327-2334.

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

TY - JOUR

T1 - Separation of lanthanides and actinides using magnetic silica particles bearing covalently attached tetra-CMPO-calix[4]arenes

AU - Böhmer, Volker

AU - Dozol, Jean-François

AU - Gruttner, Cordula

AU - Liger, Karine

AU - Matthews, Susan E.

AU - Rudershausen, Sandra

AU - Saadioui, Mohamed

AU - Wang, Pingshan

PY - 2004

Y1 - 2004

N2 - Calix[4] arene tetraethers in the cone conformation bearing four-NH-CO-CH2-P(O)Ph-2(=CMPO) residues on their wide rim and one, two or four omega-amino alkyl residues of various lengths at the narrow rim were synthesized. Reaction with dichlorotriazinyl (DCT) functionalized magnetic particles led to complete coverage of the available surface by covalently linked CMPO-calix[4] arenes in all cases. Magnetically assisted removal of Eu(III) and Am(III) from acidic solutions was distinctly more efficient with these particles in comparison to analogous particles bearing the same amount of analogous single-chain CMPO-functions. The best result, an increase of the extraction efficiency by a factor of 140-160, was obtained for attachment via two propyl spacers. The selectivity Am/Eu was in the range of 1.9-2.8. No decrease of the extraction ability was observed, when the particles were repeatedly used, after simple back extraction with water.

AB - Calix[4] arene tetraethers in the cone conformation bearing four-NH-CO-CH2-P(O)Ph-2(=CMPO) residues on their wide rim and one, two or four omega-amino alkyl residues of various lengths at the narrow rim were synthesized. Reaction with dichlorotriazinyl (DCT) functionalized magnetic particles led to complete coverage of the available surface by covalently linked CMPO-calix[4] arenes in all cases. Magnetically assisted removal of Eu(III) and Am(III) from acidic solutions was distinctly more efficient with these particles in comparison to analogous particles bearing the same amount of analogous single-chain CMPO-functions. The best result, an increase of the extraction efficiency by a factor of 140-160, was obtained for attachment via two propyl spacers. The selectivity Am/Eu was in the range of 1.9-2.8. No decrease of the extraction ability was observed, when the particles were repeatedly used, after simple back extraction with water.

U2 - 10.1039/b405602g

DO - 10.1039/b405602g

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JO - Organic & Biomolecular Chemistry

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SN - 1477-0520

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