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Meir R, Zverzhinetsky M, Harpak N, Borberg E, Burstein L, Zeiri O, Krivitsky V, Patolsky F. Direct Detection of Uranyl in Urine by Dissociation from Aptamer-Modified Nanosensor Arrays. Anal Chem 2020; 92:12528-12537. [PMID: 32842739 DOI: 10.1021/acs.analchem.0c02387] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An ever-growing demand for uranium in various industries raises concern for human health of both occupationally exposed personnel and the general population. Toxicological effects related to uranium (natural, enriched, or depleted uranium) intake involve renal, pulmonary, neurological, skeletal, and hepatic damage. Absorbed uranium is filtered by the kidneys and excreted in the urine, thus making uranium detection in urine a primary indication for exposure and body burden assessment. Therefore, the detection of uranium contamination in bio-samples (urine, blood, saliva, etc.,) is of crucial importance in the field of occupational exposure and human health-related applications, as well as in nuclear forensics. However, the direct determination of uranium in bio-samples is challenging because of "ultra-low" concentrations of uranium, inherent matrix complexity, and sample diversity, which pose a great analytical challenge to existing detection methods. Here, we report on the direct, real-time, sensitive, and selective detection of uranyl ions in unprocessed and undiluted urine samples using a uranyl-binding aptamer-modified silicon nanowire-based field-effect transistor (SiNW-FET) biosensor, with a detection limit in the picomolar concentration range. The aptamer-modified SiNW-FET presented in this work enables the simple and sensitive detection of uranyl in urine samples. The experimental approach has a straight-forward implementation to other metals and toxic elements, given the availability of target-specific aptamers. Combining the high surface-to-volume ratio of SiNWs, the high affinity and selectivity of the uranyl-binding aptamer, and the distinctive sensing methodology gives rise to a practical platform, offering simple and straightforward sensing of uranyl levels in urine, suitable for field deployment and point-of-care applications.
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Affiliation(s)
- Reut Meir
- School of Chemistry, the Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel.,Department of Analytical Chemistry, Nuclear Research Center, Negev, Beer-Sheva 84190, Israel
| | - Marina Zverzhinetsky
- School of Chemistry, the Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Nimrod Harpak
- School of Chemistry, the Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Ella Borberg
- School of Chemistry, the Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Larisa Burstein
- Wolfson Applied Materials Research Center, Tel Aviv University, Tel Aviv 69978, Israel
| | - Offer Zeiri
- Department of Analytical Chemistry, Nuclear Research Center, Negev, Beer-Sheva 84190, Israel
| | - Vadim Krivitsky
- School of Chemistry, the Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Fernando Patolsky
- School of Chemistry, the Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel.,Department of Materials Science and Engineering, the Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
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2
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Baghdadi S, Bouvier-Capely C, Ritt A, Peroux A, Fevrier L, Rebiere F, Agarande M, Cote G. Impact of the uranium (VI) speciation in mineralised urines on its extraction by calix[6]arene bearing hydroxamic groups used in chromatography columns. Talanta 2015; 144:875-82. [PMID: 26452903 DOI: 10.1016/j.talanta.2015.07.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 07/02/2015] [Accepted: 07/04/2015] [Indexed: 10/23/2022]
Abstract
Actinides determination in urine samples is part of the analyses performed to monitor internal contamination in case of an accident or a terrorist attack involving nuclear matter. Mineralisation is the first step of any of these analyses. It aims at reducing the sample volume and at destroying all organic compounds present. The mineralisation protocol is usually based on a wet ashing step, followed by actinides co-precipitation and a furnace ashing step, before redissolution and the quantification of the actinides by the appropriate techniques. Amongst the existing methods to perform the actinides co-precipitation, alkali-earth (typically calcium) precipitation is widely used. In the present work, the extraction of uranium(VI), plutonium(IV) and americium(III) from the redissolution solutions (called "mineralised urines") on calix[6]arene columns bearing hydroxamic groups was investigated as such an extraction is a necessary step before their determination by ICP-MS or alpha spectrometry. Difficulties were encountered in the transfer of uranium(VI) from raw to mineralised urines, with yield of transfer ranging between 0% and 85%, compared to about 90% for Pu and Am, depending on the starting raw urines. To understand the origin of such a difficulty, the speciation of uranium (VI) in mineralised urines was investigated by computer simulation using the MEDUSA software and the associated HYDRA database, compiled with recently published data. These calculations showed that the presence of phosphates in the "mineralised urines" leads to the formation of strong uranyl-phosphate complexes (such as UO2HPO4) which compete with the uranium (VI) extraction by the calix[6]arene bearing hydroxamic groups. The extraction constant of uranium (VI) by calix[6]arene bearing hydroxamic groups was determined in a 0.04 mol L(-1) sodium nitrate solution (logK=4.86±0.03) and implemented in an extraction model taking into account the speciation in the aqueous phase. This model allowed to simulate satisfactorily the experimental uranium extraction data and to support the preliminary conclusions about the role of the phosphates present in mineralised urines. These calculations also showed that the phosphate/calcium ratio is a key parameter as far as the efficiency of the uranium (VI) extraction by the calix[6]arene columns is concerned. It predicted that the addition of CaCl2 in mineralised urines would release uranium (VI) from phosphates by forming calcium (II)-phosphate complexes and thus facilitate the uranium (VI) extraction on calix[6]arene columns. These predictions were confirmed experimentally as the addition of 0.1 mol L(-1) CaCl2 to a mineralised urine containing naturally a high concentration of phosphate (typically 0.04 mol L(-1)) significantly increased the percentage of uranium (VI) extraction on the calix[6]arene columns.
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Affiliation(s)
- S Baghdadi
- IRSN/Pôle Radioprotection, Service de Dosimétrie Interne, LRC, 31, Avenue de la Division Leclerc, 92260 Fontenay-aux-Roses, France; PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris, 11 rue Pierre ET Marie Curie, 75005 Paris, France
| | - C Bouvier-Capely
- IRSN/Pôle Radioprotection, Service de Dosimétrie Interne, LRC, 31, Avenue de la Division Leclerc, 92260 Fontenay-aux-Roses, France.
| | - A Ritt
- IRSN/Pôle Radioprotection, Service de Recherche sur les Transferts dans la Géosphère, 31, Avenue de la Division Leclerc, LT2S, 92260 Fontenay-aux-Roses, France
| | - A Peroux
- IRSN/Pôle Radioprotection, Service de Dosimétrie Interne, LRC, 31, Avenue de la Division Leclerc, 92260 Fontenay-aux-Roses, France
| | - L Fevrier
- IRSN/Pôle Radioprotection, Service de Recherche ET d'expertise sur les Risques Environnementaux, L2BT, BP.3, 13115 St-Paul-Lez-durance Cedex, France
| | - F Rebiere
- IRSN/Pôle Radioprotection, Service de Dosimétrie Interne, LRC, 31, Avenue de la Division Leclerc, 92260 Fontenay-aux-Roses, France
| | - M Agarande
- IRSN/Pôle Radioprotection, Service de Dosimétrie Interne, LRC, 31, Avenue de la Division Leclerc, 92260 Fontenay-aux-Roses, France
| | - G Cote
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris, 11 rue Pierre ET Marie Curie, 75005 Paris, France
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Jewula P, Chambron JC, Penouilh MJ, Rousselin Y, Meyer M. A 4-tert-butylcalix[4]arene tetrahydroxamate podand based on the 1-oxypiperidine-2-one (1,2-PIPO−) chelate. Self-assembly into a supramolecular ionophore driven by coordination of tetravalent zirconium or hafnium(iv). RSC Adv 2014. [DOI: 10.1039/c4ra00977k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
K+ is encapsulated by 2 : 2 complexes of tetravalent zirconium or hafnium with the calix[4]arene podand 1H4 carrying four cyclic hydroxamate binding units.
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Affiliation(s)
- Pawel Jewula
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB)
- UMR CNRS 6302
- 21078 Dijon Cedex, France
| | - Jean-Claude Chambron
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB)
- UMR CNRS 6302
- 21078 Dijon Cedex, France
| | - Marie-José Penouilh
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB)
- UMR CNRS 6302
- 21078 Dijon Cedex, France
| | - Yoann Rousselin
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB)
- UMR CNRS 6302
- 21078 Dijon Cedex, France
| | - Michel Meyer
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB)
- UMR CNRS 6302
- 21078 Dijon Cedex, France
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An alternative procedure for uranium analysis in drinking water using AQUALIX columns: Application to varied French bottled waters. Talanta 2014; 118:180-5. [DOI: 10.1016/j.talanta.2013.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 09/27/2013] [Accepted: 10/03/2013] [Indexed: 11/19/2022]
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5
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Phan G, Semili N, Bouvier-Capely C, Landon G, Mekhloufi G, Huang N, Rebière F, Agarande M, Fattal E. Calixarene cleansing formulation for uranium skin contamination. HEALTH PHYSICS 2013; 105:382-389. [PMID: 23982616 DOI: 10.1097/hp.0b013e318298e8d3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
An oil-in-water cleansing emulsion containing calixarene molecule, an actinide specific chelating agent, was formulated in order to improve the decontamination of uranium from the skin. Commonly commercialized cosmetic ingredients such as surfactants, mineral oil, or viscosifying agents were used in preparing the calixarene emulsion. The formulation was characterized in terms of size and apparent viscosity measurements and then was tested for its ability to limit uranyl ion permeation through excoriated pig-ear skin explants in 24-h penetration studies. Calixarene emulsion effectiveness was compared with two other reference treatments consisting of DTPA and EHBP solutions. Application of calixarene emulsion induced the highest decontamination effect with an 87% decrease in uranium diffusion flux. By contrast, EHBP and DTPA solutions only allowed a 50% and 55% reduction of uranium permeation, respectively, and had the same effect as a simple dilution of the contamination by pure water. Uranium diffusion decrease was attributed to uranyl ion-specific chelation by calixarene within the formulation, since no significant effect was obtained after application of the same emulsion without calixarene. Thus, calixarene cleansing emulsion could be considered as a promising treatment in case of accidental contamination of the skin by highly diffusible uranium compounds.
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Affiliation(s)
- Guillaume Phan
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-HOM, SDI, LRC, Fontenay-aux-Roses, France.
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6
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Belhomme-Henry C, Phan G, Huang N, Bouvier C, Rebière F, Agarande M, Fattal E. Texturing formulations for uranium skin decontamination. Pharm Dev Technol 2013; 19:692-701. [PMID: 23937529 DOI: 10.3109/10837450.2013.823991] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Since no specific treatment exists in case of cutaneous contamination by radionuclides such as uranium, a nanoemulsion comprising calixarene molecules, known for their good chelation properties, was previously designed. However, this fluid topical form may be not suitable for optimal application on the skin or wounds. OBJECTIVE To develop a texturing pharmaceutical form for the treatment of wounded skins contaminated by uranium. MATERIALS AND METHODS The formulations consisted in oil-in-water (O/W) nanoemulsions, loaded with calixarene molecules. The external phase of the initial liquid nanoemulsion was modified with a combination of thermosensitive gelifying polymers: Poloxamer and HydroxyPropylMethylcellulose (HPMC) or methylcellulose (MC). These new formulations were characterized then tested by ex vivo experiments on Franz cells to prevent uranyl ions diffusion through excoriated pig ear skin explants. RESULTS Despite strong changes in rheological properties, the physico-chemical characteristics of the new nanoemulsions, such as the size and the zeta potential as well as macroscopic aspect were preserved. In addition, on wounded skin, diffusion of uranyl ions, measured by ICP-MS, was limited to less than 5% for both HPMC and MC nanoemulsions. CONCLUSIONS These results demonstrated that a hybrid formulation of nanoemulsion in hydrogel is efficient to treat uranium skin contamination.
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Chagnes A, Moncomble A, Cote G. In-Silico Calculations as a Helpful Tool for Designing New Extractants in Liquid-Liquid Extraction. SOLVENT EXTRACTION AND ION EXCHANGE 2013. [DOI: 10.1080/07366299.2013.775884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Alexandre Chagnes
- a Chimie ParisTech, Laboratoire d'Electrochimie, Chimie aux Interfaces et Modélisation pour l'Energie (LECIME) , Paris , France
- b CNRS , Paris , France
| | | | - Gérard Cote
- a Chimie ParisTech, Laboratoire d'Electrochimie, Chimie aux Interfaces et Modélisation pour l'Energie (LECIME) , Paris , France
- b CNRS , Paris , France
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Abstract
Calixarenes represent a well-known family of macrocyclic molecules with broad range of potential applications in chemical, analytical, and engineering materials fields. This paper covers the use of calixarenes as complexing agents for uranium(VI). The high effectiveness of calix[6]arenes in comparison to other calixarenes in uranium(VI) separation process is also presented. Processes such as liquid-liquid extraction (LLE), liquid membrane (LM) separation, and ion exchange are considered as potential fields for application of calixarenes as useful agents for bindingUO22+for effective separation from aqueous solutions containing other metal components.
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Rao A, Rathod NV, Malkhede DD, Raut VV, Ramakumar KL. Supercritical Carbon Dioxide Extraction of Uranium from Acidic Medium Employing Calixarenes. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2012.707731] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Ex vivo decrease in uranium diffusion through intact and excoriated pig ear skin by a calixarene nanoemulsion. Eur J Pharm Biopharm 2011; 79:258-67. [DOI: 10.1016/j.ejpb.2011.05.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 05/11/2011] [Accepted: 05/12/2011] [Indexed: 11/18/2022]
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Mekki S, Bouvier-Capely C, Jalouali R, Rebière F. The extraction of thorium by calix[6]arene columns for urine analysis. RADIATION PROTECTION DOSIMETRY 2011; 144:330-334. [PMID: 21159742 DOI: 10.1093/rpd/ncq490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Thorium is a natural alpha-emitting element occurring in various ores and has numerous industrial applications. Routine monitoring of potentially exposed workers is generally achieved through radiobioassay (urine and faeces). The procedures currently used for analysing actinides such as thorium in urine require lengthy chemical separation associated with long counting times by alpha-spectrometry due to low activity levels. Thus, their main drawback is that they are time-consuming, which limits the frequency and flexibility of individual monitoring. In this context, this study developed new radiochemical procedures based on the use of tertbutylcalix[6]arenes bearing three carboxylic acid groups or three hydroxamic acid groups. These previous works demonstrated that these macrocyclic molecules immobilised on an inert solid support are excellent extractants for uranium, plutonium and americium. In this study, the authors investigated the thorium extraction by calix[6]arene columns. Experiments were performed on synthetic solutions and on real urine samples. The influence of various parameters, such as the thorium solution pH and the column flow rate on thorium extraction, was studied. The results showed that both calix[6]arenes are efficient to extract thorium. Thorium extraction is quantitative from pH = 2 for synthetic solution and from pH = 3 for real urine samples. This study has demonstrated that the column flow rate is a crucial parameter since its value must not be too high to achieve the steady-state complexation equilibrium. Finally, these results will be compared with those obtained for other actinides (U, Pu and Am) and the conditions of actinides' separation will be discussed.
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Affiliation(s)
- S Mekki
- IRSN, Radiological Protection and human health Division, BP 17, F-92 262 Fontenay-aux-Roses Cedex, France
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Spagnul A, Bouvier-Capely C, Adam M, Phan G, Rebière F, Fattal E. Quick and efficient extraction of uranium from a contaminated solution by a calixarene nanoemulsion. Int J Pharm 2010; 398:179-84. [DOI: 10.1016/j.ijpharm.2010.07.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 07/09/2010] [Accepted: 07/13/2010] [Indexed: 10/19/2022]
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13
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Spagnul A, Bouvier-Capely C, Phan G, Rebière F, Fattal E. A new formulation containing calixarene molecules as an emergency treatment of uranium skin contamination. HEALTH PHYSICS 2010; 99:430-434. [PMID: 20699708 DOI: 10.1097/hp.0b013e3181d1a1b6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Cutaneous contamination represents the second highest contamination pathway in the nuclear industry. Despite that the entry of actinides such as uranium into the body through intact or wounded skin can induce a high internal exposure, no specific emergency treatment for cutaneous contamination exists. In the present work, an innovative formulation dedicated to uranium skin decontamination was developed. The galenic form consists in an oil-in-water nanoemulsion, which contains a tricarboxylic calixarene known for its high uranium affinity and selectivity. The physicochemical characterization of this topical form revealed that calixarene molecules are located at the surface of the dispersed oil droplets of the nanoemulsion, being thus potentially available for uranium chelation. It was demonstrated in preliminary in vitro experiments by using an adapted ultrafiltration method that the calixarene nanoemulsion was able to extract and retain more than 80% of uranium from an aqueous uranyl nitrate contamination solution. First ex vivo experiments carried out in Franz diffusion cells on pig ear skin explants during 24 h showed that the immediate application of the calixarene nanoemulsion on a skin contaminated by a uranyl nitrate solution allowed a uranium transcutaneous diffusion decrease of about 98% through intact and excoriated skins. The calixarene nanoemulsion developed in this study thus seems to be an efficient emergency system for uranium skin decontamination.
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Affiliation(s)
- Aurélie Spagnul
- Radiochemistry Laboratory, DRPH/SDI, BP 17 F-92262 Fontenay-aux-Roses, France
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Wiebke J, Weigand A, Weissmann D, Glorius M, Moll H, Bernhard G, Dolg M. Combined Computational and Experimental Study of Uranyl(VI) 1:2 Complexation by Aromatic Acids. Inorg Chem 2010; 49:6428-35. [DOI: 10.1021/ic902496u] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jonas Wiebke
- Institut für Theoretische Chemie, Department für Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln, Germany
| | - Anna Weigand
- Institut für Theoretische Chemie, Department für Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln, Germany
| | - Daniel Weissmann
- Institut für Theoretische Chemie, Department für Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln, Germany
| | - Maja Glorius
- Forschungszentrum Dresden−Rossendorf e.V., Institut für Radiochemie, P.O. Box 510119, D-01314 Dresden, Germany
| | - Henry Moll
- Forschungszentrum Dresden−Rossendorf e.V., Institut für Radiochemie, P.O. Box 510119, D-01314 Dresden, Germany
| | - Gert Bernhard
- Forschungszentrum Dresden−Rossendorf e.V., Institut für Radiochemie, P.O. Box 510119, D-01314 Dresden, Germany
| | - Michael Dolg
- Institut für Theoretische Chemie, Department für Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln, Germany
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Spagnul A, Bouvier‐Capely C, Phan G, Rebière F, Fattal E. Calixarene‐Entrapped Nanoemulsion for Uranium Extraction from Contaminated Solutions. J Pharm Sci 2010; 99:1375-83. [DOI: 10.1002/jps.21932] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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16
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The use of calix[6]arene molecules for actinides analysis in urine and drinking water: an alternative to current procedures. J Radioanal Nucl Chem 2009. [DOI: 10.1007/s10967-009-0152-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Boulet B, Joubert L, Cote G, Bouvier-Capely C, Cossonnet C, Adamo C. Theoretical Study of the Uranyl Complexation by Hydroxamic and Carboxylic Acid Groups. Inorg Chem 2008; 47:7983-91. [DOI: 10.1021/ic7018633] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Béatrice Boulet
- IRSN/DRPH/SDI/LRC, BP 17; 92262 Fontenay-aux-Roses Cedex, France, and Laboratoire d’Electrochimie et Chimie Analytique, UMR CNRS-ENSCP 7575 Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - Laurent Joubert
- IRSN/DRPH/SDI/LRC, BP 17; 92262 Fontenay-aux-Roses Cedex, France, and Laboratoire d’Electrochimie et Chimie Analytique, UMR CNRS-ENSCP 7575 Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - Gérard Cote
- IRSN/DRPH/SDI/LRC, BP 17; 92262 Fontenay-aux-Roses Cedex, France, and Laboratoire d’Electrochimie et Chimie Analytique, UMR CNRS-ENSCP 7575 Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - Céline Bouvier-Capely
- IRSN/DRPH/SDI/LRC, BP 17; 92262 Fontenay-aux-Roses Cedex, France, and Laboratoire d’Electrochimie et Chimie Analytique, UMR CNRS-ENSCP 7575 Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - Catherine Cossonnet
- IRSN/DRPH/SDI/LRC, BP 17; 92262 Fontenay-aux-Roses Cedex, France, and Laboratoire d’Electrochimie et Chimie Analytique, UMR CNRS-ENSCP 7575 Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - Carlo Adamo
- IRSN/DRPH/SDI/LRC, BP 17; 92262 Fontenay-aux-Roses Cedex, France, and Laboratoire d’Electrochimie et Chimie Analytique, UMR CNRS-ENSCP 7575 Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05, France
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Wetherby AE, Rheingold AL, Feasley CL, Weinert CS. Synthesis and crystal structure of a germanium(II) calix[6]arene containing unusual diamidosilyl ether groups. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.02.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Dean NE, Hancock RD, Cahill CL, Frisch M. Affinity of the Highly Preorganized Ligand PDA (1,10-Phenanthroline-2,9-dicarboxylic acid) for Large Metal Ions of Higher Charge. A Crystallographic and Thermodynamic Study of PDA Complexes of Thorium(IV) and the Uranyl(VI) ion. Inorg Chem 2008; 47:2000-10. [DOI: 10.1021/ic701574j] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nolan E. Dean
- Department of Chemistry and Biochemistry, University of North Carolina−Wilmington, Wilmington, North Carolina 28403, and Department of Chemistry, George Washington University, Washington, D.C. 20052
| | - Robert D. Hancock
- Department of Chemistry and Biochemistry, University of North Carolina−Wilmington, Wilmington, North Carolina 28403, and Department of Chemistry, George Washington University, Washington, D.C. 20052
| | - Christopher L. Cahill
- Department of Chemistry and Biochemistry, University of North Carolina−Wilmington, Wilmington, North Carolina 28403, and Department of Chemistry, George Washington University, Washington, D.C. 20052
| | - Mark Frisch
- Department of Chemistry and Biochemistry, University of North Carolina−Wilmington, Wilmington, North Carolina 28403, and Department of Chemistry, George Washington University, Washington, D.C. 20052
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Bharara MS, Strawbridge K, Vilsek JZ, Bray TH, Gorden AEV. Novel Dinuclear Uranyl Complexes with Asymmetric Schiff Base Ligands: Synthesis, Structural Characterization, Reactivity, and Extraction Studies. Inorg Chem 2007; 46:8309-15. [PMID: 17722915 DOI: 10.1021/ic7010315] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of uranyl nitrate with asymmetric [3O, N] Schiff base ligands in the presence of base yields dinuclear uranyl complexes, [UO2(HL1)]2.DMF (1), [UO2(HL2)]2.2DMF.H2O (2), and [UO2(HL3)]2.2DMF (3) with 3-(2-hydroxybenzylideneamino)propane-1,2-diol (H3L1), 4-((2,3-dihydroxypropylimino)methyl)benzene-1,3-diol (H3L2), and 3-(3,5-di-tert-butyl-2-hydroxybenzylideneamino)propane-1,2-diol (H3L3), respectively. All complexes exhibit a symmetric U2O2 core featuring a distorted pentagonal bipyramidal geometry around each uranyl center. The hydroxyl groups on the ligands are attached to the uranyl ion in chelating, bridging, and coordinate covalent bonds. Distortion in the backbone is more pronounced in 1, where the phenyl groups are on the same side of the planar U2O2 core. The phenyl groups are present on the opposite side of U2O2 core in 2 and 3 due to electronic and steric effects. A similar hydrogen-bonding pattern is observed in the solid-state structures of 1 and 3 with terminal hydroxyl groups and DMF molecules, resulting in discrete molecules. Free aryl hydroxyl groups and water molecules in 2 give rise to a two-dimensional network with water molecules in the channels of an extended corrugated sheet structure. Compound 1 in the presence of excess Ag(NO3) yields {[(UO2)(NO3)(C6H4OCOO)](NH(CH2CH3)3)}2 (4), where the geometry around the uranyl center is hexagonal bipyrimidal. Two-phase extraction studies of uranium from aqueous media employing H3L3 indicate 99% reduction of uranyl ion at higher pH.
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Affiliation(s)
- Mohan S Bharara
- Department of Chemistry and Biochemistry, University of Auburn, Alabama 36849, USA
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