2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine as a ligand for efficient actinide(III)/lanthanide(III) separation

Antje Bremer; Christian M. Ruff; Denise Girnt; Udo Müllich; Jörg Rothe; Peter W. Roesky; Petra J. Panak; Alexei Karpov; Thomas J J Müller; Melissa A. Denecke; Andreas Geist

doi:10.1021/ic3000526

2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine as a ligand for efficient actinide(III)/lanthanide(III) separation

Antje Bremer, Christian M. Ruff, Denise Girnt, Udo Müllich, Jörg Rothe, Peter W. Roesky, Petra J. Panak, Alexei Karpov, Thomas J J Müller, Melissa A. Denecke, Andreas Geist

Dalton Nuclear Institute

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Abstract

The N-donor complexing ligand 2,6-bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3- yl)pyridine (C5-BPP) was synthesized and screened as an extracting agent selective for trivalent actinide cations over lanthanides. C5-BPP extracts Am(III) from up to 1 mol/L HNO 3 with a separation factor over Eu(III) of approximately 100. Due to its good performance as an extracting agent, the complexation of trivalent actinides and lanthanides with C5-BPP was studied. The solid-state compounds [Ln(C5-BPP)(NO 3) 3(DMF)] (Ln = Sm(III), Eu(III)) were synthesized, fully characterized, and compared to the solution structure of the Am(III) 1:1 complex [Am(C5-BPP)(NO 3) 3]. The high stability constant of log β 3 = 14.8 ± 0.4 determined for the Cm(III) 1:3 complex is in line with C5-BPP's high distribution ratios for Am(III) observed in extraction experiments. © 2012 American Chemical Society.

Original language	English
Pages (from-to)	5199-5207
Number of pages	8
Journal	Inorganic Chemistry: including bioinorganic chemistry
Volume	51
Issue number	9
DOIs	https://doi.org/10.1021/ic3000526
Publication status	Published - 7 May 2012

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CCDC 892112: Experimental Crystal Structure Determination
Bremer, A. (Contributor), Ruff, C. M. (Contributor), Girnt, D. (Contributor), Müllich, U. (Contributor), Rothe, J. (Contributor), Roesky, P. W. (Contributor), Panak, P. J. (Contributor), Karpov, A. (Contributor), Müller, T. (Contributor), Denecke, M. A. (Contributor) & Geist, A. (Contributor), Cambridge Crystallographic Data Centre, 1 Jan 2012
DOI: 10.5517/ccyy9tz, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccyy9tz&sid=DataCite
Dataset
CCDC 892113: Experimental Crystal Structure Determination
Bremer, A. (Contributor), Ruff, C. M. (Contributor), Girnt, D. (Contributor), Müllich, U. (Contributor), Rothe, J. (Contributor), Roesky, P. W. (Contributor), Panak, P. J. (Contributor), Karpov, A. (Contributor), Müller, T. (Contributor), Denecke, M. A. (Contributor) & Geist, A. (Contributor), Cambridge Crystallographic Data Centre, 1 Jan 2012
DOI: 10.5517/ccyy9v0, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccyy9v0&sid=DataCite
Dataset

Cite this

Bremer, A., Ruff, C. M., Girnt, D., Müllich, U., Rothe, J., Roesky, P. W., Panak, P. J., Karpov, A., Müller, T. J. J., Denecke, M. A., & Geist, A. (2012). 2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine as a ligand for efficient actinide(III)/lanthanide(III) separation. Inorganic Chemistry: including bioinorganic chemistry , 51(9), 5199-5207. https://doi.org/10.1021/ic3000526

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title = "2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine as a ligand for efficient actinide(III)/lanthanide(III) separation",

abstract = "The N-donor complexing ligand 2,6-bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3- yl)pyridine (C5-BPP) was synthesized and screened as an extracting agent selective for trivalent actinide cations over lanthanides. C5-BPP extracts Am(III) from up to 1 mol/L HNO 3 with a separation factor over Eu(III) of approximately 100. Due to its good performance as an extracting agent, the complexation of trivalent actinides and lanthanides with C5-BPP was studied. The solid-state compounds [Ln(C5-BPP)(NO 3) 3(DMF)] (Ln = Sm(III), Eu(III)) were synthesized, fully characterized, and compared to the solution structure of the Am(III) 1:1 complex [Am(C5-BPP)(NO 3) 3]. The high stability constant of log β 3 = 14.8 ± 0.4 determined for the Cm(III) 1:3 complex is in line with C5-BPP's high distribution ratios for Am(III) observed in extraction experiments. {\textcopyright} 2012 American Chemical Society.",

author = "Antje Bremer and Ruff, {Christian M.} and Denise Girnt and Udo M{\"u}llich and J{\"o}rg Rothe and Roesky, {Peter W.} and Panak, {Petra J.} and Alexei Karpov and M{\"u}ller, {Thomas J J} and Denecke, {Melissa A.} and Andreas Geist",

year = "2012",

month = may,

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doi = "10.1021/ic3000526",

language = "English",

volume = "51",

pages = "5199--5207",

journal = "Inorganic Chemistry: including bioinorganic chemistry ",

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publisher = "American Chemical Society",

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Bremer, A, Ruff, CM, Girnt, D, Müllich, U, Rothe, J, Roesky, PW, Panak, PJ, Karpov, A, Müller, TJJ, Denecke, MA & Geist, A 2012, '2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine as a ligand for efficient actinide(III)/lanthanide(III) separation', Inorganic Chemistry: including bioinorganic chemistry , vol. 51, no. 9, pp. 5199-5207. https://doi.org/10.1021/ic3000526

TY - JOUR

T1 - 2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine as a ligand for efficient actinide(III)/lanthanide(III) separation

AU - Bremer, Antje

AU - Ruff, Christian M.

AU - Girnt, Denise

AU - Müllich, Udo

AU - Rothe, Jörg

AU - Roesky, Peter W.

AU - Panak, Petra J.

AU - Karpov, Alexei

AU - Müller, Thomas J J

AU - Denecke, Melissa A.

AU - Geist, Andreas

PY - 2012/5/7

Y1 - 2012/5/7

N2 - The N-donor complexing ligand 2,6-bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3- yl)pyridine (C5-BPP) was synthesized and screened as an extracting agent selective for trivalent actinide cations over lanthanides. C5-BPP extracts Am(III) from up to 1 mol/L HNO 3 with a separation factor over Eu(III) of approximately 100. Due to its good performance as an extracting agent, the complexation of trivalent actinides and lanthanides with C5-BPP was studied. The solid-state compounds [Ln(C5-BPP)(NO 3) 3(DMF)] (Ln = Sm(III), Eu(III)) were synthesized, fully characterized, and compared to the solution structure of the Am(III) 1:1 complex [Am(C5-BPP)(NO 3) 3]. The high stability constant of log β 3 = 14.8 ± 0.4 determined for the Cm(III) 1:3 complex is in line with C5-BPP's high distribution ratios for Am(III) observed in extraction experiments. © 2012 American Chemical Society.

AB - The N-donor complexing ligand 2,6-bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3- yl)pyridine (C5-BPP) was synthesized and screened as an extracting agent selective for trivalent actinide cations over lanthanides. C5-BPP extracts Am(III) from up to 1 mol/L HNO 3 with a separation factor over Eu(III) of approximately 100. Due to its good performance as an extracting agent, the complexation of trivalent actinides and lanthanides with C5-BPP was studied. The solid-state compounds [Ln(C5-BPP)(NO 3) 3(DMF)] (Ln = Sm(III), Eu(III)) were synthesized, fully characterized, and compared to the solution structure of the Am(III) 1:1 complex [Am(C5-BPP)(NO 3) 3]. The high stability constant of log β 3 = 14.8 ± 0.4 determined for the Cm(III) 1:3 complex is in line with C5-BPP's high distribution ratios for Am(III) observed in extraction experiments. © 2012 American Chemical Society.

U2 - 10.1021/ic3000526

DO - 10.1021/ic3000526

M3 - Article

SN - 0020-1669

VL - 51

SP - 5199

EP - 5207

JO - Inorganic Chemistry: including bioinorganic chemistry

JF - Inorganic Chemistry: including bioinorganic chemistry

IS - 9

ER -

2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine as a ligand for efficient actinide(III)/lanthanide(III) separation

Abstract

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CCDC 892112: Experimental Crystal Structure Determination

CCDC 892113: Experimental Crystal Structure Determination

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