1
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Brager DM, Panchal AJ, Cahill CL. A Spectroscopic and Computational Evaluation of Uranyl Oxo Engagement with Transition Metal Cations. Inorg Chem 2024; 63:11155-11167. [PMID: 38829561 DOI: 10.1021/acs.inorgchem.4c00831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
We report the synthesis and characterization of five novel Cd2+/UO22+ heterometallic complexes that feature Cd-oxo distances ranging from 78 to 171% of the sum of the van der Waals radii for these atoms. This work marks an extension of our previously reported Pb2+/UO22+ and Ag+/UO22+ complexes, yet with much more pronounced structural and spectroscopic effects resulting from Cd-oxo interactions. We observe a major shift in the U═O symmetric stretch and significant uranyl bond length asymmetry. The ρbcp values calculated using Quantum Theory of Atoms in Molecules (QTAIM) support the asymmetry displayed in the structural data and indicate a decrease in covalent character in U═O bonds with close Cd-oxo contacts, more so than in related compounds containing Pb2+ and Ag+. Second-order perturbation theory (SOPT) analysis reveals that O spx → Cd s is the most significant orbital overlap and U═O bonding and antibonding orbitals also contribute to the interaction (U═O σ/π → Cd d and Cd s → U═O σ/π*). The overall stabilization energies for these interactions were lower than those in previously reported Pb2+ cations, yet larger than related Ag+ compounds. Analysis of the equatorial coordination sphere of the Cd2+/UO22+ compounds (along with Pb2+/UO22+ complexes) reveals that 7-coordinate uranium favors closer, stronger Mn+-oxo contacts. These results indicate that U═O bond strength tuning is possible with judicious choice of metal cations for oxo interactions and equatorial ligand coordination.
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Affiliation(s)
- Dominique M Brager
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, District of Columbia 20052, United States
| | - Ahan J Panchal
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, District of Columbia 20052, United States
| | - Christopher L Cahill
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, District of Columbia 20052, United States
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2
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Valerio L, Hakey BM, Leary DC, Stockdale E, Brennessel WW, Milsmann C, Matson EM. Synthesis and Characterization of Isostructural Th(IV) and U(IV) Pyridine Dipyrrolide Complexes. Inorg Chem 2024; 63:9610-9623. [PMID: 38377955 PMCID: PMC11134498 DOI: 10.1021/acs.inorgchem.3c04391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 02/22/2024]
Abstract
A series of pyridine dipyrrolide actinide(IV) complexes, (MesPDPPh)AnCl2(THF) and An(MesPDPPh)2 (An = U, Th, where (MesPDPPh) is the doubly deprotonated form of 2,6-bis(5-(2,4,6-trimethylphenyl)-3-phenyl-1H-pyrrol-2-yl)pyridine), have been prepared. Characterization of all four complexes has been performed through a combination of solid- and solution-state methods, including elemental analysis, single crystal X-ray diffraction, and electronic absorption and nuclear magnetic resonance spectroscopies. Collectively, these data confirm the formation of the mono- and bis-ligated species. Time-dependent density functional theory has been performed on all four An(IV) complexes, providing insight into the nature of electronic transitions that are observed in the electronic absorption spectra of these compounds. Room temperature, solution-state luminescence of the actinide complexes is presented. Both Th(IV) derivatives exhibit strong photoluminescence; in contrast, the U(IV) species are nonemissive.
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Affiliation(s)
- Leyla
R. Valerio
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Brett M. Hakey
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Dylan C. Leary
- C.
Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Erin Stockdale
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - William W. Brennessel
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Carsten Milsmann
- C.
Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Ellen M. Matson
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
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3
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Rutkauskaite R, Zhang X, Woodward AW, Liu Y, Herrera G, Purkis J, Woodall SD, Sarsfield M, Schreckenbach G, Natrajan LS, Arnold PL. The effect of ancillary ligands on hydrocarbon C-H bond functionalization by uranyl photocatalysts. Chem Sci 2024; 15:6965-6978. [PMID: 38725516 PMCID: PMC11077554 DOI: 10.1039/d4sc01310g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 03/21/2024] [Indexed: 05/12/2024] Open
Abstract
The aqueous uranyl dication has long been known to facilitate the UV light-induced decomposition of aqueous VOCs (volatile organic compounds), via the long-lived highly efficient, uranyl excited state. The lower-energy visible light excited uranyl ion is also able to cleave unactivated hydrocarbon C-H bonds, yet the development of this reactivity into controlled and catalytic C-H bond functionalization is still in its infancy, with almost all studies still focused on uranyl nitrate as the precatalyst. Here, hydrocarbon-soluble uranyl nitrate and chloride complexes supported by substituted phenanthroline (Ph2phen) ligands are compared to each other, and to the parent salts, as photocatalysts for the functionalization of cyclooctane by H atom abstraction. Analysis of the absorption and emission spectra, and emission lifetimes of Ph2phen-coordinated uranyl complexes demonstrate the utility of the ligand in light absorption in the photocatalysis, which is related to the energy and kinetic decay profile of the uranyl photoexcited state. Density functional theory computational analysis of the C-H activation steps in the reaction show how a set of dispersion forces between the hydrocarbon substrate and the Ph2phen ligand provide control over the H atom abstraction, and provide predictions of selectivity of H atom abstraction by the uranyl oxo of the ring C-H over the ethyl C-H in an ethylcyclohexane substrate.
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Affiliation(s)
- Ryte Rutkauskaite
- Department of Chemistry, University of California Berkeley California 94720 USA
- Lawrence Berkeley National Laboratory California 94720 USA
| | - Xiaobin Zhang
- Department of Chemistry, University of Manitoba Winnipeg Manitoba R3T 2N2 Canada
| | - Adam W Woodward
- Department of Chemistry, University of Manchester Manchester M13 9PL UK
| | - Yanlin Liu
- Department of Chemistry, University of California Berkeley California 94720 USA
| | - Gabriel Herrera
- Department of Chemistry, University of California Berkeley California 94720 USA
| | - Jamie Purkis
- Atkins (part of SNC-Lavalin Group) The Hub 500 Park Avenue, Aztec West Bristol BS32 4RZ UK
| | - Sean D Woodall
- UK National Nuclear Laboratory Central Laboratory, Sellafield, Seascale Cumbria CA20 1PG UK
| | - Mark Sarsfield
- UK National Nuclear Laboratory Central Laboratory, Sellafield, Seascale Cumbria CA20 1PG UK
| | - Georg Schreckenbach
- Department of Chemistry, University of Manitoba Winnipeg Manitoba R3T 2N2 Canada
| | - Louise S Natrajan
- Department of Chemistry, University of Manchester Manchester M13 9PL UK
| | - Polly L Arnold
- Department of Chemistry, University of California Berkeley California 94720 USA
- Lawrence Berkeley National Laboratory California 94720 USA
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4
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Liu X, Li Y, Tan C, Chen Z, Yang H, Wang X. Highly Selective Extraction of U(VI) from Solutions by Metal Organic Framework-Based Nanomaterials through Sorption, Photochemistry, and Electrochemistry Strategies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:18696-18712. [PMID: 38079289 DOI: 10.1021/acs.langmuir.3c02739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
With the rapid development of nuclear technology and peaceful utilization of nuclear energy, plentiful U(VI) not only is required to be extracted from solutions for a sustainable nuclear fuel supply but also is inevitably released into the surrounding environment to result in pollution and threaten human health. Thereby, realizing selective extraction of U(VI) from aqueous solutions is crucial for U(VI) pollution control and a sustainable nuclear industry. Metal organic frameworks (MOFs) have gained multidisciplinary attention due to their excellent properties including large specific surface areas, tunable pore structures, easy functionalization, etc. This Review comprehensively summarizes the research progress of MOFs and MOF-based materials on U(VI) removal from aqueous solutions by sorption, photocatalysis, electrocatalysis, membrane separation, etc. The efficient high extraction ability is dependent on the intrinsic properties of MOFs and the techniques used. The removal properties of MOF-based materials as adsorbents, photocatalysts, and electrocatalysts for U(VI) are discussed. Information about the interaction mechanisms between U(VI) and MOF-based materials are analyzed in-depth, including experiments, theoretical calculations, and advanced spectroscopy analysis. The removal properties for U(VI) of various MOF-based materials are assessed through different techniques. Finally, a summary and perspective on the direction and challenges of MOF-based materials and various pollutant removal technologies are proposed to provide some significant information on designing and fabricating MOF-based materials for environmental pollution management.
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Affiliation(s)
- Xiaolu Liu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Yang Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Chunhong Tan
- Huan Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang, Hunan 421001, P. R. China
| | - Zhongshan Chen
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Hui Yang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Xiangke Wang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
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Guo X, Zhou L, Liu X, Tan G, Yuan F, Nezamzadeh-Ejhieh A, Qi N, Liu J, Peng Y. Fluorescence detection platform of metal-organic frameworks for biomarkers. Colloids Surf B Biointerfaces 2023; 229:113455. [PMID: 37473653 DOI: 10.1016/j.colsurfb.2023.113455] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/03/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023]
Abstract
Sensitive and selective detection of biomarkers is crucial in the study and early diagnosis of diseases. With the continuous development of biosensing technologies, fluorescent biosensors based on metal-organic frameworks have attracted increasing attention in the field of biomarker detection due to the combination of the advantages of MOFs, such as high specific surface area, large porosity, and structure with tunable functionality and the technical simplicity, sensitivity and efficiency and good applicability of fluorescent detection techniques. Therefore, researchers must understand the fluorescence response mechanism of such fluorescent biosensors and their specific applications in this field. Of all biomarkers applicable to such sensors, the chemical essence of nucleic acids, proteins, amino acids, dopamine, and other small molecules account for about a quarter of the total number of studies. This review systematically elaborates on four fluorescence response mechanisms: metal-centered emission (MC), ligand-centered emission (LC), charge transfer (CT), and guest-induced luminescence change (GI), presenting their applications in the detection of nucleic acids, proteins, amino acids, dopamine, and other small molecule biomarkers. In addition, the current challenges of MOFs-based fluorescent biosensors are also discussed, and their further development prospects are concerned.
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Affiliation(s)
- Xuanran Guo
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan 523808, China
| | - Luyi Zhou
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan 523808, China
| | - Xuezhang Liu
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan 523808, China
| | - Guijian Tan
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan 523808, China
| | - Fei Yuan
- College of Chemical Engineering and Modern Materials, Shangluo University, Shangluo 726000, China
| | | | - Na Qi
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China.
| | - Jianqiang Liu
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Guangdong Medical University Key Laboratory of Research and Development of New Medical Materials, Dongguan 523808, China; Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
| | - Yanqiong Peng
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523808, China.
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Kusumoto S, Atoini Y, Koide Y, Chainok K, Hayami S, Kim Y, Harrowfield J, Thuéry P. Nanotubule inclusion in the channels formed by a six-fold interpenetrated, triperiodic framework. Chem Commun (Camb) 2023; 59:10004-10007. [PMID: 37522165 DOI: 10.1039/d3cc02636a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
When reacted together with uranyl ions under solvo-hydrothermal conditions, a bis(pyridiniumcarboxylate) zwitterion (L) and tricarballylic acid (H3tca) give the complex [NH4]2[UO2(L)2][UO2(tca)]4·2H2O (1). The two ligands are segregated into different units, an anionic nanotubule for tca3- and a six-fold interpenetrated cationic framework with lvt topology for L. The entangled framework defines large channels which contain the square-profile nanotubules. Complex 1 has a photoluminescence quantum yield of 19% and its emission spectrum shows the superposition of the signals due to the two independent species.
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Affiliation(s)
- Sotaro Kusumoto
- Department of Material & Life Chemistry, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Youssef Atoini
- Technical University of Munich, Campus Straubing, Schulgasse 22, Straubing 94315, Germany
| | - Yoshihiro Koide
- Department of Material & Life Chemistry, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Kittipong Chainok
- Thammasat University Research Unit in Multifunctional Crystalline Materials and Applications (TU-MCMA), Faculty of Science and Technology, Thammasat University, Pathum Thani 12121, Thailand.
| | - Shinya Hayami
- Department of Chemistry, Graduate School of Science and Technology, Institute of Industrial Nanomaterials (IINa), Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan.
| | - Yang Kim
- Thammasat University Research Unit in Multifunctional Crystalline Materials and Applications (TU-MCMA), Faculty of Science and Technology, Thammasat University, Pathum Thani 12121, Thailand.
- Department of Chemistry, Graduate School of Science and Technology, Institute of Industrial Nanomaterials (IINa), Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan.
| | - Jack Harrowfield
- Université de Strasbourg, ISIS, 8 allée Gaspard Monge, Strasbourg 67083, France.
| | - Pierre Thuéry
- Université Paris-Saclay, CEA, CNRS, NIMBE, Gif-sur-Yvette 91191, France.
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7
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Riedhammer J, Halter DP, Meyer K. Nonaqueous Electrochemistry of Uranium Complexes: A Guide to Structure-Reactivity Tuning. Chem Rev 2023. [PMID: 37134149 DOI: 10.1021/acs.chemrev.2c00903] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Uranium complexes can be stabilized in a wide range of oxidation states, ranging from UII to UVI and a very recent example of a UI complex. This review provides a comprehensive summary of electrochemistry data reported on uranium complexes in nonaqueous electrolyte, to serve as a clear point of reference for newly synthesized compounds, and to evaluate how different ligand environments influence experimentally observed electrochemical redox potentials. Data for over 200 uranium compounds are reported, together with a detailed discussion of trends observed across larger series of complexes in response to ligand field variations. In analogy to the traditional Lever parameter, we utilized the data to derive a new uranium-specific set of ligand field parameters UEL(L) that more accurately represent metal-ligand bonding situations than previously existing transition metal derived parameters. Exemplarily, we demonstrate UEL(L) parameters to be useful for the prediction of structure-reactivity correlations in order to activate specific substrate targets.
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Affiliation(s)
- Judith Riedhammer
- Department of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Dominik P Halter
- Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich (TUM), TUM School of Natural Sciences, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Karsten Meyer
- Department of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 1, 91058 Erlangen, Germany
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8
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Hanna SL, Farha OK. Energy-structure-property relationships in uranium metal-organic frameworks. Chem Sci 2023; 14:4219-4229. [PMID: 37123191 PMCID: PMC10132172 DOI: 10.1039/d3sc00788j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 04/02/2023] [Indexed: 05/02/2023] Open
Abstract
Located at the foot of the periodic table, uranium is a relatively underexplored element possessing rich chemistry. In addition to its high relevance to nuclear power, uranium shows promise for small molecule activation and photocatalysis, among many other powerful functions. Researchers have used metal-organic frameworks (MOFs) to harness uranium's properties, and in their quest to do so, have discovered remarkable structures and unique properties unobserved in traditional transition metal MOFs. More recently, (e.g. the last 8-10 years), theoretical calculations of framework energetics have supplemented structure-property studies in uranium MOFs (U-MOFs). In this Perspective, we summarize how these budding energy-structure-property relationships in U-MOFs enable a deeper understanding of chemical phenomena, enlarge chemical space, and elevate the field to targeted, rather than exploratory, discovery. Importantly, this Perspective encourages interdisciplinary connections between experimentalists and theorists by demonstrating how these collaborations have elevated the entire U-MOF field.
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Affiliation(s)
- Sylvia L Hanna
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University Evanston IL 60208 USA
| | - Omar K Farha
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University Evanston IL 60208 USA
- Department of Chemical and Biological Engineering, Northwestern University Evanston IL 60208 USA
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9
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Park KC, Kittikhunnatham P, Lim J, Thaggard GC, Liu Y, Martin CR, Leith GA, Toler DJ, Ta AT, Birkner N, Lehman-Andino I, Hernandez-Jimenez A, Morrison G, Amoroso JW, Zur Loye HC, DiPrete DP, Smith MD, Brinkman KS, Phillpot SR, Shustova NB. f-block MOFs: A Pathway to Heterometallic Transuranics. Angew Chem Int Ed Engl 2023; 62:e202216349. [PMID: 36450099 DOI: 10.1002/anie.202216349] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/05/2022]
Abstract
A novel series of heterometallic f-block-frameworks including the first examples of transuranic heterometallic 238 U/239 Pu-metal-organic frameworks (MOFs) and a novel monometallic 239 Pu-analog are reported. In combination with theoretical calculations, we probed the kinetics and thermodynamics of heterometallic actinide(An)-MOF formation and reported the first value of a U-to-Th transmetallation rate. We concluded that formation of uranyl species could be a driving force for solid-state metathesis. Density of states near the Fermi edge, enthalpy of formation, band gap, proton affinity, and thermal/chemical stability were probed as a function of metal ratios. Furthermore, we achieved 97 % of the theoretical maximum capacity for An-integration. These studies shed light on fundamental aspects of actinide chemistry and also foreshadow avenues for the development of emerging classes of An-containing materials, including radioisotope thermoelectric generators or metalloradiopharmaceuticals.
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Affiliation(s)
- Kyoung Chul Park
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | | | - Jaewoong Lim
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Grace C Thaggard
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Yuan Liu
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Corey R Martin
- Savannah River National Laboratory, Aiken, SC 29808, USA
| | - Gabrielle A Leith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Donald J Toler
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - An T Ta
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Nancy Birkner
- Department of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA.,Center for Nuclear Environmental Engineering Sciences and Radioactive Waste Management (NEESRWM), Clemson University, Clemson, SC 29634, USA
| | | | | | - Gregory Morrison
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Jake W Amoroso
- Savannah River National Laboratory, Aiken, SC 29808, USA
| | - Hans-Conrad Zur Loye
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA.,Savannah River National Laboratory, Aiken, SC 29808, USA
| | - Dave P DiPrete
- Savannah River National Laboratory, Aiken, SC 29808, USA
| | - Mark D Smith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Kyle S Brinkman
- Department of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA.,Center for Nuclear Environmental Engineering Sciences and Radioactive Waste Management (NEESRWM), Clemson University, Clemson, SC 29634, USA
| | - Simon R Phillpot
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Natalia B Shustova
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
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10
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Matsuda S, Nakashima N, Yokoyama K, Taniguchi S, Chosrowjan H, Somekawa T, Yatsuhashi T. Laser-fluence dependence of resonance-enhanced multiphoton reduction of trivalent europium. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Kumar S, Maji S, Sundararajan K. Enhanced luminescence of tris(carboxylato)uranyl(VI) complexes and energy transfer to Eu(III): a combined spectroscopic and theoretical investigation. Dalton Trans 2022; 51:9803-9817. [PMID: 35708002 DOI: 10.1039/d2dt00849a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Complex formation between uranyl and carboxylate ligands (benzoate, nicotinate and isonicotinate) has been studied extensively by absorption and luminescence spectroscopy in acetonitrile medium. Experimental data had indicated the existence of stable and enhanced luminescent tris(carboxylato) uranyl(VI) complexes i.e. [UO2(L)3]- with D3h symmetry. The high luminescence of these complexes was due to the sensitization of the Oyl → U ligand to metal charge transfer (LMCT) emission by extremely intense equatorial (carboxylate ligands) LMCT bands. The variation in the experimentally observed parameters such as intensity of equatorial LMCT bands, luminescence lifetimes, quantum yields and structural parameters among tris(carboxylato) uranyl(VI) complexes are affirmed by quantum chemical calculations using density functional theory and the computational results are found to be in good agreement with experimental findings. Interestingly, in a very dilute mixture of [UO2(L)3]- and Eu(III), energy transfer from uranyl to Eu(III) is observed and it leads to the detection of europium at trace levels. This is an intriguing observation as none of the previous studies have reported such a low level of detection limit of Eu(III) by means of energy transfer from any metal.
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Affiliation(s)
- Satendra Kumar
- Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400 094, India
| | - S Maji
- Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India.
| | - K Sundararajan
- Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400 094, India
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12
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Schnable D, Schley ND, Ung G. Circularly Polarized Luminescence from Uranyl Improves Resolution of Electronic Transitions. J Am Chem Soc 2022; 144:10718-10722. [PMID: 35678629 DOI: 10.1021/jacs.2c03791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first reported example of circularly polarized luminescence from a chiral, molecular uranyl (UO22+) complex in solution is presented. This uranyl chiroptical activity is enabled by complexation with ibuprofen, an enantiopure chiral carboxylate ligand. Salt metathesis between [UO2Cl2(thf)2]2 and the sodium ibuprofenate salts results in the formation of the anionic tris complexes; these complexes are found to be luminescent in solution, both under visible excitation, directly targeting the metal, and through sensitization by UV absorption and energy transfer from the ligand. Each enantiomer displays both circular dichroism and circularly polarized luminescence (CPL) with |gabs| ≤ 8.1 × 10-2 and |glum| ≤ 8.0 × 10-3 under UV excitation, comparable to chiral transition metal complexes or purely organic emitters. The strength of the CPL emission is found to be comparable following excitation of either the ligand or metal directly. Further, use of CPL allows for resolution of subcomponents of the emission spectrum not previously possible at room temperature using standard fluorescence techniques. Observation of CPL following direct uranyl excitation presents a new tool for probing speciation of uranyl complexes when chiral ligands are used, without the need for synthetic modification to incorporate a suitable chromophore, and could enable the design of improved ligands for uranyl extraction from wastewater.
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Affiliation(s)
- David Schnable
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Nathan D Schley
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Gaël Ung
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
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13
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Jennifer G A, Gao Y, Schreckenbach G, Varathan E. Chemical bonding in actinyl(V/VI) dipyriamethyrin complexes for the actinide series from americium to californium: a computational investigation. Dalton Trans 2022; 51:10006-10019. [PMID: 35703365 DOI: 10.1039/d2dt01142e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The separation of minor actinides in their dioxocation (i.e., actinyl) form in high-valence oxidation states requires efficient ligands for their complexation. In this work, we evaluate the complexation properties of actinyls including americyl, curyl, berkelyl, and californyl in their pentavalent and hexavalent oxidation states with the dipyriamethyrin ligand (L) using density functional theory calculations. The calculated bond parameters show shorter AnOyl bonds with covalent character and longer An-N bonds with ionic character. The bonding between the actinyl cation and the ligand anion shows a flow of charges from the ligand to actinyl in all [AnV/VIO2-L]1-/0 complexes. However, across the series, backdonation of charges from the metal to the ligand becomes prominent and stabilizes the complexes. The thermodynamic parameters in the gas phase and solution suggest that the complex formation reaction is spontaneous for [CfV/VIO2-L]1-/0 complexes and spontaneous at elevated temperatures (>298.15 K) for all other complexes. Spin-orbit corrections have a quantitative impact while the overall trend remains the same. Energy decomposition analysis (EDA) reveals that the interaction between actinyl and the ligand is mainly due to electrostatic contributions that decrease from Am to Cf along with an increase in orbital contributions due to the backdonation of charges from the actinyl metal center to the ligand that greatly stabilizes the Cf complex. The repulsive Pauli energy contribution is observed to increase in the case of [AnVO2-L]1- complexes from Am to Cf while a decrease is observed among [AnVIO2-L]0 complexes, showing minimum repulsion in [CfVIO2-L]0 complex formation. Overall, the hexavalent actinyl complexes show greater stability (increasing from Am to Cf) than their pentavalent counterparts.
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Affiliation(s)
- Abigail Jennifer G
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, Tamil Nadu, India.
| | - Yang Gao
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada. .,Institut National de La Recherche Scientifique (INRS)-Centre Énergie Matériaux Télécommunications, Varennes, QC, J3X 1P7, Canada.,Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Georg Schreckenbach
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada.
| | - Elumalai Varathan
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, Tamil Nadu, India.
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14
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Boreen MA, Ye CZ, Kerridge A, McCabe KN, Skeel BA, Maron L, Arnold J. Does Reduction-Induced Isomerization of a Uranium(III) Aryl Complex Proceed via C-H Oxidative Addition and Reductive Elimination across the Uranium(II/IV) Redox Couple? Inorg Chem 2022; 61:8955-8965. [PMID: 35654478 DOI: 10.1021/acs.inorgchem.2c01563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reaction of the uranium(III) bis(amidinate) aryl complex {TerphC(NiPr)2}2U(Terph) (2, where Terph = 4,4″-di-tert-butyl-m-terphenyl-2'-yl) with a strong reductant enabled isolation of isomeric uranium(III) bis(amidinate) aryl product {TerphC(NiPr)2}2U(Terph*) (3, where Terph* = 4,4″-di-tert-butyl-m-terphenyl-4'-yl). In terms of connectivity, 3 differs from 2 only in the positions of the U-C and C-H bonds on the central aryl ring of the m-terphenyl-based ligand. A deuterium labeling study ruled out mechanisms for this isomerization involving intermolecular abstraction or deprotonation of the ligand C-H bonds activated during the reaction. Due to the complexity of this rapid, heterogeneous reaction, experimental studies could not further distinguish between two different intramolecular C-H activation mechanisms. However, high-level computational studies were consistent with a mechanism that included two sets of unimolecular, mononuclear C-H oxidative addition and reductive elimination steps involving uranium(II/IV).
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Affiliation(s)
- Michael A Boreen
- Department of Chemistry, University of California, Berkeley, California 94720, United States.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Christopher Z Ye
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Andrew Kerridge
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, U.K
| | - Karl N McCabe
- LPCNO, Université de Toulouse, INSA Toulouse, 135 Avenue de Rangueil, Toulouse 31077, France
| | - Brighton A Skeel
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Laurent Maron
- LPCNO, Université de Toulouse, INSA Toulouse, 135 Avenue de Rangueil, Toulouse 31077, France
| | - John Arnold
- Department of Chemistry, University of California, Berkeley, California 94720, United States.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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15
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Synthesis, Crystal Structure, and Hirshfeld Surface Analysis of Hexachloroplatinate and Tetraclorouranylate of 3-Carboxypyridinium—Halogen Bonds and π-Interactions vs. Hydrogen Bonds. CRYSTALS 2022. [DOI: 10.3390/cryst12020271] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
This work aimed to synthesize new platinum and uranium compounds with nicotinic acid. In this article we describe the synthesis of two new anionic complexes (HNic)2[PtCl6] and (HNic)2[UO2Cl4] using wet chemistry methods. The structure of the obtained single crystals was established by single-crystal X-ray diffraction. The Hirshfeld surface analysis of the obtained complexes and their analogue (HNic)2[SiF6] was carried out for the analysis of intermolecular interactions. Hydrogen bonds (H···Hal/Hal···H and O···H/H···O) make the main contribution to intermolecular interactions in all compounds. Other important contacts in cations in all compounds are H···H, C···H/H···C and C···Hal/Hal···C; in anions H···Hal/Hal···H. The Pt-containing complex has a halogen-π interaction and halogen bonds, but Si-containing complex has a π–π staking interaction; these types of interactions are not observed in the U-containing compound.
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16
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Wang JY, Mei L, Huang ZW, Chi XW, Geng JS, Hu KQ, Yu JP, Jiao CS, Zhang M, Chai ZF, Shi WQ. Coordination-Adaptive Polydentate Pseudorotaxane Ligand for Capturing Multiple Uranyl Species. Inorg Chem 2022; 61:3058-3071. [PMID: 35130695 DOI: 10.1021/acs.inorgchem.1c03204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The propensity of uranyl for hydrolysis in aqueous environments prevents precise control of uranyl species in the scenarios of on-demand separation and tailored synthesis. Herein, using cucurbit[7]uril (CB[7]) as the macrocyclic molecule and 4,4'-bipyridine-N,N'-dioxide (DPO) as the string molecule, we propose a new kind of multidentate pseudorotaxane ligand, DPO@CB[7] for capturing uranyl species at different pH's. With the aprotic nature of DPO for metal coordination, the coordination ability of the DPO@CB[7] ligand is less affected by pH and can work in a wide range of pH's. Furthermore, by adaptive uranyl coordination, this aprotic pseudorotaxane ligand achieves effective recognition for different uranyl species ranging from monomeric to tetrameric originating from hydrolysis at varying pH's, and four novel uranyl-rotaxane compounds (URC1-4) are successfully obtained. Single-crystal X-ray diffraction analysis reveals that the DPO@CB[7] ligand coordinates with uranyl centers from monomeric to tetrameric in four different modes, as a result of structural flexibility of the DPO@CB[7] pseudorotaxane ligand. A detailed discussion for conformation flexibility of the DPO@CB[7] ligand has been conducted on the position changes of the DPO ligand trapped in the CB[7], which thus reveals good adaptivity of DPO@CB[7] that is noncovalently bonded as a supramolecular motif. In addition, characterization of the physicochemical properties of URC1 and URC2 with high phase purity, including powder X-ray diffraction (PXRD), infrared spectroscopy (IR), thermogravimetric analysis (TGA), and luminescence properties, are also provided. This work provides a good case of an adaptive pseudorotaxane ligand for the recognition and capture of different uranyl species and will bring valuable hints to the design of multifunctional supramolecular ligands for actinide separation in the future.
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Affiliation(s)
- Jing-Yang Wang
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin 150001, China.,Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Mei
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Wei Huang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xiao-Wang Chi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jun-Shan Geng
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Kong-Qiu Hu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Ji-Pan Yu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Cai-Shan Jiao
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin 150001, China
| | - Meng Zhang
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin 150001, China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.,Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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17
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Pathak N, Das P, Chundawat B, Modak P, Modak B. Unraveling U 6+, Am 3+&Eu 3+ ion's distribution in Ca 10(PO 4) 6F 2for radioactive waste immobilization and the associated U 6+→ Eu 3+energy transfer dynamics for tunable emission characteristics. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:126980. [PMID: 34482073 DOI: 10.1016/j.jhazmat.2021.126980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
A combined photoluminescence (PL) and theoretical study has been performed on Ca10(PO4)6F2:U6+ and Ca10(PO4)6F2:U6+,Eu3+ compounds in order to explore Ca10(PO4)6F2 as potential host for radioactive waste immobilization by understanding the distribution U6+, Eu3+ and Am3+ ions among the lattice sites and the related radiation stability. DFT based calculations on various structures with different distribution of U6+, Eu3+ and Am3+ ions showed that Eu3+ and Am3+ ions prefer to occupy the Ca2 sites while the highly charged U6+ ions prefer Ca1 site. This is also supported by the PL lifetime study, which provided two lifetime components with different contribution for both U6+ and Eu3+ ions present at two different lattice sites. The PL study of U6+ doped compounds confirmed the existence of U in the UO22+ form, which makes it as a pure green emitter. Upon co-doping Eu3+ ion, the compounds were transformed to red emitter. Further, there is an energy transfer process from U6+to Eu3+, which shifted the CIE color coordinates towards pure red region while increasing doping level of U6+. This proves U6+ as a good sensitizer for Eu3+ ion. PL study on gamma irradiated U6+ doped Ca10(PO4)6F2 compound also showed excellent radiation stability at Ca2 site.
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Affiliation(s)
- Nimai Pathak
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | - Pratik Das
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India; HomiBhabha National Institute (HBNI), Mumbai, India
| | - Bhagyalaxmi Chundawat
- Ex MSc student from KJ Somaiya College of Science & Commerce, Vidyavihar, Mumbai, India
| | - Pampa Modak
- Radiological Safety Division, Atomic Energy Regulatory Board, Anushaktinagar, Mumbai 400094, India; HomiBhabha National Institute (HBNI), Mumbai, India
| | - Brindaban Modak
- Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai 400 085, India; HomiBhabha National Institute (HBNI), Mumbai, India
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18
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Hou X, Tang SF. Lanthanide-uranyl phosphonates constructed from diethyl ((phenylsulfonyl)methyl)phosphonate. Dalton Trans 2021; 51:1041-1047. [PMID: 34935817 DOI: 10.1039/d1dt03596g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lanthanide-uranyl phosphonates possess intriguing crystal structures and huge application prospects, but the construction of these materials remains challenging. In this work, we demonstrate that new uranyl and lanthanide-uranyl sulfonylphosphonates with elegant crystal structures and photophysical properties can be assembled hydrothermally by employing the heterofunctional diethyl phosphonate (diethyl ((phenylsulfonyl)methyl)phosphonate, Et2L) as a precursor ligand, which provides an effective strategy for the construction of lanthanide-uranyl phosphonates.
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Affiliation(s)
- Xiaomin Hou
- Shandong Province Key Laboratory of Applied Mycology, College of Life Science, Qingdao Agricultural University, Changcheng Road 700, Chengyang District, Qingdao 266109, China
| | - Si-Fu Tang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Road 700, Chengyang District, Qingdao 266109, China.
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19
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Brager DM, Nicholas AD, Schofield MH, Cahill CL. Pb-Oxo Interactions in Uranyl Hybrid Materials: A Combined Experimental and Computational Analysis of Bonding and Spectroscopic Properties. Inorg Chem 2021; 60:17186-17200. [PMID: 34727497 DOI: 10.1021/acs.inorgchem.1c02518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reported are the syntheses and characterization of six new heterometallic UO22+/Pb2+ compounds. These materials feature rare instances of M-oxo interactions, which influence the bonding properties of the uranyl cation. The spectroscopic effects of these interactions were measured using luminescence and Raman spectroscopy. Computational density functional theory-based natural bonding orbital and quantum theory of atoms in molecules methods indicate interactions arise predominantly through charge transfer between cationic units via the electron-donating uranyl O spx lone pair orbitals and electron-accepting Pb2+ p orbitals. The interaction strength varies as a function of Pb-oxo interaction distance and angle with energy values ranging from 0.47 kcal/mol in the longer contacts to 21.94 kcal/mol in the shorter contacts. Uranyl units with stronger interactions at the oxo display an asymmetric bond weakening and a loss of covalent character in the U═O bonds interacting closely with the Pb2+ ion. Luminescence quenching is observed in cases in which strong Pb-oxo interactions are present and is accompanied by red-shifting of the uranyl symmetric Raman stretch. Changes to inner sphere uranyl bonding manifest as a weakening of the U═O bond as a result of interaction with the Pb2+ ion. Comprehensive evaluation of the effects of metal ions on uranyl spectra supports modeling efforts probing uranyl bonding and may inform applications such as forensic signatures.
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Affiliation(s)
- Dominique M Brager
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, D.C. 20052, United States
| | - Aaron D Nicholas
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, D.C. 20052, United States
| | - Mark H Schofield
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, D.C. 20052, United States
| | - Christopher L Cahill
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, D.C. 20052, United States
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20
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An updated status and trends in actinide metal-organic frameworks (An-MOFs): From synthesis to application. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214011] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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21
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Chattaraj S, Bhattacharyya A, Sadhu B. Role of O Substitution in Expanded Porphyrins on Uranyl Complexation: Orbital- and Density-Based Analyses. Inorg Chem 2021; 60:15351-15363. [PMID: 34586785 DOI: 10.1021/acs.inorgchem.1c01981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Search for new U(VI) sequestering macrocyclic ligands is an important area of research due to manifold applications. Besides hard- or soft-donor-based ligands, mixed-donor ligands are also gaining popularity in achieving optimized performances. However, how the combination of hard-soft-donor centers alters the bonding interactions with U(VI) is still not well-understood. Moreover, a consensus is yet to be reached on the nature and role of underlying covalent interactions in mixed N,O-donor ligands. In this work, using the relativistic density functional theory (DFT), we attempted to address these intriguing issues by investigating the subtle change in bonding characteristics of the uranyl ion upon binding with an expanded porphyrin, viz. sapphyrin, with subsequent O substitutions at the cavity. The results obtained from a range of modern analysis tools suggest that in the O-substituted sapphyrin variants, UO22+ prefers to bind with N over O, and an increase in the number of O-donor sites at the cavity prompts UO22+ to have a better interaction with the rest of the N-donor-centers. Although O donors are involved in more numbers of mixed molecular orbitals, the variation in the amplitude of overlap and the better σ-donation ability favor N to have stronger bonding interactions with uranyl. Molecular orbital (MO) and density of states (DOS) analyses show favorable participation of U(d), and the involvement of U(f) orbitals in bonding is of a low extent but non-negligible. Although electrostatic interaction dominates at U-O/N bonds in the equatorial plane, the quantum theory of atoms in molecules descriptors, MO analysis, and overlap-integral calculations confirm the presence of underlying near-degeneracy-driven covalent interactions.
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Affiliation(s)
- Saparya Chattaraj
- Health Physics Division, Health Safety and Environment Group, Bhabha Atomic Research Center, Mumbai 400085, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Arunasis Bhattacharyya
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.,Radiochemistry Division, Radiochemistry and Isotope Group, Bhabha Atomic Research Center, Mumbai 400085, India
| | - Biswajit Sadhu
- Health Physics Division, Health Safety and Environment Group, Bhabha Atomic Research Center, Mumbai 400085, India
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22
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Surbella RG, Reilly DD, Sinnwell MA, McNamara BK, Sweet LE, Schwantes JM, Thallapally PK. Multifunctional Two-Dimensional Metal-Organic Frameworks for Radionuclide Sequestration and Detection. ACS APPLIED MATERIALS & INTERFACES 2021; 13:45696-45707. [PMID: 34542263 DOI: 10.1021/acsami.1c11018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Two lanthanide-containing porous coordination polymers, [Ln2(bpdc)6(phen)2]·nH2O (1) and [Ln2(bpdc)6(terpy)2]·3H2O (2) (Ln = Pr, Nd, or Sm-Dy; bpdc: 2,2'-bipyridine-5,5'-dicarboxylic acid; phen: 1,10-phenanthroline; and terpy: 2,2':6',2″-terpyridine), have been hydrothermally synthesized and structurally characterized by powder and single-crystal X-ray diffraction. Crystallographic analyses reveal that compounds 1 and 2 feature Ln3+-containing dimeric nodes that form a porous two-dimensional (2D) and nonporous three-dimensional (3D) framework, respectively. Each material is stable in aqueous media between pH 3 and 10 and exhibits modest thermal stability up to ∼400 °C. Notably, a portion of the phen and bpdc ligands in 1 can be removed thermally, without compromising the crystal structure, causing the surface area and pore volume to increase. The optical properties of 1 and 2 with Gd3+, Sm3+, Tb3+, and Eu3+ are explored in the solid state using absorbance, fluorescence, and lifetime spectroscopies. The analyses reveal a complex blend of metal and ligand emission in the materials containing Sm3+ and Tb3+, while those featuring Eu3+ are dominated by intense metal-based emission. Compound 1 with Eu3+ shows promise for the capture and detection of the uranyl cation (UO2)2+ from aqueous media. In short, uranyl capture is observed at pH 4, and the adsorption thereof is detectable via vibrational and fluorescence spectroscopies and colorimetrically as the off-white color of 1 turns yellow with uptake. Finally, both 1 and 2 with Eu3+ produce bright red emission upon irradiation with Cu Kα X-ray radiation (8.04 keV) and are candidate materials for applications in solid-state scintillation.
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Affiliation(s)
- Robert G Surbella
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Dallas D Reilly
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Michael A Sinnwell
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Bruce K McNamara
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Lucas E Sweet
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jon M Schwantes
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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23
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Sun X, Kolling DR, Smythers AL, Deal RA. Investigations of the photochemical charge-transfer reduction of uranyl UO22+(VI) to uranyl UO2+(V) by benzene-1,4-diol (1,4-C6H4(OH)2) and oxalate (C2O42−) by UV–Vis, electron paramagnetic resonance, and luminescence spectroscopies. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Ortu F, Randall S, Moulding DJ, Woodward AW, Kerridge A, Meyer K, La Pierre HS, Natrajan LS. Photoluminescence of Pentavalent Uranyl Amide Complexes. J Am Chem Soc 2021; 143:13184-13194. [PMID: 34387466 PMCID: PMC8397311 DOI: 10.1021/jacs.1c05184] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Pentavalent uranyl species are crucial intermediates in transformations that play a key role for the nuclear industry and have recently been demonstrated to persist in reducing biotic and abiotic aqueous environments. However, due to the inherent instability of pentavalent uranyl, little is known about its electronic structure. Herein, we report the synthesis and characterization of a series of monomeric and dimeric, pentavalent uranyl amide complexes. These synthetic efforts enable the acquisition of emission spectra of well-defined pentavalent uranyl complexes using photoluminescence techniques, which establish a unique signature to characterize its electronic structure and, potentially, its role in biological and engineered environments via emission spectroscopy.
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Affiliation(s)
- Fabrizio Ortu
- Centre for Radiochemistry Resesarch, Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.,School of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, U.K
| | - Simon Randall
- Centre for Radiochemistry Resesarch, Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - David J Moulding
- Centre for Radiochemistry Resesarch, Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Adam W Woodward
- Centre for Radiochemistry Resesarch, Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.,Photon Science Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Andrew Kerridge
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, U.K
| | - Karsten Meyer
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Henry S La Pierre
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Egerlandstr. 1, 91058 Erlangen, Germany.,School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States.,Nuclear and Radiological Engineering and Medical Physics Program, School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Louise S Natrajan
- Centre for Radiochemistry Resesarch, Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.,Photon Science Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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25
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Li S, Hu Y, Shen Z, Cai Y, Ji Z, Tan X, Liu Z, Zhao G, Hu S, Wang X. Rapid and selective uranium extraction from aqueous solution under visible light in the absence of solid photocatalyst. Sci China Chem 2021; 64:1323-1331. [DOI: doi.org/10.1007/s11426-021-9987-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/18/2021] [Indexed: 06/25/2023]
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26
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Li S, Hu Y, Shen Z, Cai Y, Ji Z, Tan X, Liu Z, Zhao G, Hu S, Wang X. Rapid and selective uranium extraction from aqueous solution under visible light in the absence of solid photocatalyst. Sci China Chem 2021. [DOI: 10.1007/s11426-021-9987-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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27
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Martin CR, Leith GA, Shustova NB. Beyond structural motifs: the frontier of actinide-containing metal-organic frameworks. Chem Sci 2021; 12:7214-7230. [PMID: 34163816 PMCID: PMC8171348 DOI: 10.1039/d1sc01827b] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022] Open
Abstract
In this perspective, we feature recent advances in the field of actinide-containing metal-organic frameworks (An-MOFs) with a main focus on their electronic, catalytic, photophysical, and sorption properties. This discussion deviates from a strictly crystallographic analysis of An-MOFs, reported in several reviews, or synthesis of novel structural motifs, and instead delves into the remarkable potential of An-MOFs for evolving the nuclear waste administration sector. Currently, the An-MOF field is dominated by thorium- and uranium-containing structures, with only a few reports on transuranic frameworks. However, some of the reported properties in the field of An-MOFs foreshadow potential implementation of these materials and are the main focus of this report. Thus, this perspective intends to provide a glimpse into the challenges, triumphs, and future directions of An-MOFs in sectors ranging from the traditional realm of gas sorption and separation to recently emerging areas such as electronics and photophysics.
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Affiliation(s)
- Corey R Martin
- Department of Chemistry and Biochemistry, University of South Carolina Columbia South Carolina 29208 USA
| | - Gabrielle A Leith
- Department of Chemistry and Biochemistry, University of South Carolina Columbia South Carolina 29208 USA
| | - Natalia B Shustova
- Department of Chemistry and Biochemistry, University of South Carolina Columbia South Carolina 29208 USA
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Wu YB, Xiong C, Liu QY, Ma JG, Luo F, Wang YL. Structural Evolution from Noninterpenetrated to Interpenetrated Thorium-Organic Frameworks Exhibiting High Propyne Storage. Inorg Chem 2021; 60:6472-6479. [PMID: 33844911 DOI: 10.1021/acs.inorgchem.1c00196] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Two thorium-organic frameworks of [Th6O4(OH)4(TFBPDC)6(H2O)6]n (Th-TFBPDC) and [Th6O4(OH)4(TFBPDC)4(HCOO)4(H2O)6]n (Th-TFBPDC-i) constructed from the 3,3',5,5'-tetrakis(fluoro)biphenyl-4,4'-dicarboxylate (TFBPDC2-) ligand were obtained in a reaction. At an early stage of the reaction, the formation of the three-dimensional (3D) framework of Th-TFBPDC was discovered. At a later stage of the reaction, the complete product of Th-TFBPDC-i was obtained. The structural evolution from a noninterpenetrated network of Th-TFBPDC to a 2-fold interpenetrated network of Th-TFBPDC-i is a dissolution-recrystallization process and rationalized as the four equatorial TFBPDC2- ligands in an octahedral [Th6O4(OH)4(TFBPDC)12] unit were displaced by four formate ligands to form a [Th6O4(OH)4(TFBPDC)8(HCOO)4] unit via a ligand substitution reaction. The large pore volume as well as the strong interactions between the host framework and guest propyne (C3H4) molecules demonstrated by computational results endow the highly water-stable Th-TFBPDC with the best-performing C3H4 storage under ambient conditions. This work presents a rare example of structural evolution from a 3D noninterpenetrated network to a 2-fold 3D interpenetrated network and a highly promising metal-organic framework (MOF) for C3H4 storage with a C3H4 uptake of 8.16 mmol g-1 at 298 K.
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Affiliation(s)
- Yuan-Bo Wu
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Cheng Xiong
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Qing-Yan Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Jian-Guo Ma
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Feng Luo
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Yu-Ling Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
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Faizova R, Fadaei‐Tirani F, Chauvin A, Mazzanti M. Synthesis and Characterization of Water Stable Uranyl(V) Complexes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Radmila Faizova
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Farzaneh Fadaei‐Tirani
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Anne‐Sophie Chauvin
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Marinella Mazzanti
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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Faizova R, Fadaei‐Tirani F, Chauvin A, Mazzanti M. Synthesis and Characterization of Water Stable Uranyl(V) Complexes. Angew Chem Int Ed Engl 2021; 60:8227-8235. [DOI: 10.1002/anie.202016123] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/04/2021] [Indexed: 12/13/2022]
Affiliation(s)
- Radmila Faizova
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Farzaneh Fadaei‐Tirani
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Anne‐Sophie Chauvin
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Marinella Mazzanti
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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32
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Rajendiran K, Yoganandham ST, Arumugam S, Arumugam D, Thananjeyan K. An overview of liquid crystalline mesophase transition and photophysical properties of “f block,” “d block,” and (SCO) spin-crossover metallomesogens in the optoelectronics. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114793] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Fang Y, Dehaen W. Small-molecule-based fluorescent probes for f-block metal ions: A new frontier in chemosensors. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213524] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Carter KP, Kalaj M, McNeil S, Kerridge A, Schofield MH, Ridenour JA, Cahill CL. Structural, spectroscopic, and computational evaluations of cation–cation and halogen bonding interactions in heterometallic uranyl hybrid materials. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01319f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A route for systematically accessing the oxo atoms of the linear uranyl (UO22+) cation via cation–cation and halogen bonding interactions is detailed, and interaction strengths are probed via structural, vibrational, and computational means.
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Affiliation(s)
- Korey P. Carter
- Department of Chemistry
- The George Washington University
- Washington
- USA
- Chemical Sciences Division
| | - Mark Kalaj
- Department of Chemistry
- The George Washington University
- Washington
- USA
- Department of Chemistry and Biochemistry
| | - Sapphire McNeil
- Department of Chemistry
- Lancaster University
- Bailrigg
- Lancaster LA1 4YB
- UK
| | - Andrew Kerridge
- Department of Chemistry
- Lancaster University
- Bailrigg
- Lancaster LA1 4YB
- UK
| | - Mark H. Schofield
- Department of Chemistry
- The George Washington University
- Washington
- USA
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35
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Blanes Díaz A, Kravchuk DV, Peroutka AA, Cole E, Basile MC, Forbes TZ. Photoinduced Transformation of Uranyl Nitrate Crown Ether Compounds. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Anamar Blanes Díaz
- Department of Chemistry University of Iowa Iowa City IA 52242 United States
| | - Dmytro V. Kravchuk
- Department of Chemistry University of Iowa Iowa City IA 52242 United States
| | | | - Erica Cole
- Department of Chemistry University of Iowa Iowa City IA 52242 United States
| | - Madeline C. Basile
- Department of Chemistry University of Iowa Iowa City IA 52242 United States
| | - Tori Z. Forbes
- Department of Chemistry University of Iowa Iowa City IA 52242 United States
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36
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Darzinezhad K, Amini MM, Janghouri M, Mohajerani E, Fathollahi MR, Jamshidi Z, Janiak C. Introducing Bluish-Green Light-Emitting Diodes (OLEDs) and Tuning Their Color Intensity by Uranium Complexes: Synthesis, Characterization, and Photoluminescence Studies of 8-Hydroxyquinoline Complexes of Uranium. Inorg Chem 2020; 59:17028-17037. [PMID: 33232608 DOI: 10.1021/acs.inorgchem.0c02242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To improve our understanding of the chemistry of actinide complexes and to spur their development in the field of actinide markers, two new uranium complexes were synthesized using 8-hydroxyquinoline and 5,7-dichloro-8-hydroxyquinoline. The prepared complexes were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, ultraviolet-visible spectroscopy, elemental analysis, and single-crystal X-ray diffraction. The impact of the electron-withdrawing group of the ligand on the photoluminescence spectra of the complexes in solution and in the solid state was scrutinized. The bandgap of the complexes was calculated using the density functional theory (DFT) method to investigate the effects of the electron-withdrawing groups on energy levels. The synthesized uranium complexes demonstrated appropriate levels of the lowest unoccupied molecular orbital energy, leading to favorable dye stability. The prepared uranium complexes showed blue fluorescent emission, and the sample with the most intense fluorescence was used to construct bluish-green organic light-emitting diodes using simple solution processing fabrication methods. Absorbance spectra, emission spectra, DFT-calculated energy levels, and comparisons of the fabricated organic light-emitting diodes indicated that the electron-withdrawing group was a key factor in photoluminescence behavior.
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Affiliation(s)
| | - Mostafa M Amini
- Department of Chemistry, Shahid Beheshti University, Tehran 1983963113, Iran
| | - Mohammad Janghouri
- Faculty of Industrial Technologies, Urmia University of Technology, Band Road, Urmia 5716693187, Iran
| | - Ezeddin Mohajerani
- Laser and Plasma Research Institute, Shahid Beheshti University, Tehran 1983963113, Iran
| | | | - Zahra Jamshidi
- Chemistry Department, Sharif University of Technology, Tehran 11155-9516, Iran
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine Universität, D-40204 Düsseldorf, Germany
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37
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Behera N, Sethi S. Unprecedented Catalytic Behavior of Uranyl(VI) Compounds in Chemical Reactions. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Nabakrushna Behera
- School of Chemistry Sambalpur University Jyoti Vihar – 768019 Sambalpur Odisha India
| | - Sipun Sethi
- School of Chemistry Sambalpur University Jyoti Vihar – 768019 Sambalpur Odisha India
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38
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Surbella RG, Carter KP, Lohrey TD, Reilly D, Kalaj M, McNamara BK, Schwantes J, Abergel RJ. Rational Design of a Uranyl Metal-Organic Framework for the Capture and Colorimetric Detection of Organic Dyes. Chemistry 2020; 26:13819-13825. [PMID: 33463816 DOI: 10.1002/chem.201905766] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 07/07/2020] [Indexed: 12/26/2022]
Abstract
A new uranyl containing metal-organic framework, RPL-1: [(UO2)2(C28H18O8)] . H2O (RPL for Radiochemical Processing Laboratory), was prepared, structurally characterized, and the solid-state photoluminescence properties explored. Single crystal X-ray diffraction data reveals the structure of RPL-1 consists of two crystallographically unique three dimensional, interpenetrating nets with a 4,3-connected tbo topology. Each net contains large pores with an average width of 22.8 Å and is formed from monomeric, hexagonal bipyramidal uranyl nodes that are linked via 1,2,4,5-tetrakis(4-carboxyphenyl)benzene (TCPB) ligands. The thermal and photophysical properties of RPL-1 were investigated using thermogravimetric analysis and absorbance, fluorescence, and lifetime spectroscopies. The material displays excellent thermal stability and temperature dependent uranyl and TCPB luminescence. The framework is stable in aqueous media and due to the large void space (constituting 76 % of the unit cell by volume) can sequester organic dyes, the uptake of which induces a visible change to the color of the material.
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Affiliation(s)
- Robert G Surbella
- Pacific Northwest National Laboratory, Richland, Washington, 99354, USA
| | - Korey P Carter
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Trevor D Lohrey
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.,Department of Chemistry, University of California, Berkeley, CA, 94720, USA
| | - Dallas Reilly
- Pacific Northwest National Laboratory, Richland, Washington, 99354, USA
| | - Mark Kalaj
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Bruce K McNamara
- Pacific Northwest National Laboratory, Richland, Washington, 99354, USA
| | - Jon Schwantes
- Pacific Northwest National Laboratory, Richland, Washington, 99354, USA
| | - Rebecca J Abergel
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
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39
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Thuéry P, Atoini Y, Kusumoto S, Hayami S, Kim Y, Harrowfield J. Optimizing Photoluminescence Quantum Yields in Uranyl Dicarboxylate Complexes: Further Investigations of 2,5‐, 2,6‐ and 3,5‐Pyridinedicarboxylates and 2,3‐Pyrazinedicarboxylate. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000803] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pierre Thuéry
- Université Paris‐Saclay CEA, CNRS, NIMBE 91191 Gif‐sur‐Yvette France
| | - Youssef Atoini
- ISIS Université de Strasbourg 8 allée Gaspard Monge 67083 Strasbourg France
| | - Sotaro Kusumoto
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2‐39‐1 Kurokami 860‐8555 Kumamoto, Chuo‐ku Japan
| | - Shinya Hayami
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2‐39‐1 Kurokami 860‐8555 Kumamoto, Chuo‐ku Japan
| | - Yang Kim
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2‐39‐1 Kurokami 860‐8555 Kumamoto, Chuo‐ku Japan
| | - Jack Harrowfield
- ISIS Université de Strasbourg 8 allée Gaspard Monge 67083 Strasbourg France
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40
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Wang Y, Darapaneni P, Ofoegbuna T, Gupta SK, Kizilkaya O, Mao Y, Dorman JA. Effect of Oxide Ion Distribution on a Uranium Structure in Highly U-Doped RE 2Hf 2O 7 (RE = La and Gd) Nanoparticles. Inorg Chem 2020; 59:14070-14077. [PMID: 32960587 DOI: 10.1021/acs.inorgchem.0c01850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rare-earth based A2B2O7 compounds have been considered as potential host materials for nuclear waste due to their exceptional chemical, physical, capability of accommodating high concentration of actinides at both A- and B-sites, negligible leaching, tendency to form antisite defects, and radiation stabilities. In this work, La2Hf2O7 (LHO) and Gd2Hf2O7 (GHO) nanoparticles (NPs) were chosen as the RE-based hafnates to study the structural changes and the formation of different U molecular structures upon doping (or alloying) at high concentration (up to 30 mol %) using a combined coprecipitation and molten-salt synthesis. These compounds form similar crystal structures, i.e., ordered pyrochlore (LHO) and disordered fluorite (GHO), but are expected to show different phase transformations at high U doping concentration. X-ray diffraction (XRD) and Rietveld refinement results show that the LHO:U NPs have high structural stability, whereas the GHO:U NPs exhibit a highly disordered structure at high U concentration. Alternatively, the vibrational spectra show an increasingly random oxygen distribution with U doping, driving the LHO:U NPs to the disordered fluorite phase. X-ray spectroscopy indicates that U is stabilized as different U6+ species in both LHO and GHO hosts, resulting in the formation of oxygen vacancies stemming from the U local coordination and different phase transformation. Interestingly, the disordered fluorite phase has been reported to have increased radiation tolerance, suggesting multiple benefits associated with the LHO host. These results demonstrate the importance of the structural and chemical effect of actinide dopants on similar host matrices which are important for the development of RE-based hafnates for nuclear waste hosts, sensors, thermal barrier coatings, and scintillator applications.
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Affiliation(s)
- Yuming Wang
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Pragathi Darapaneni
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Tochukwu Ofoegbuna
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Santosh K Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Orhan Kizilkaya
- Center for Advanced Microstructures and Devices, Louisiana State University, Baton Rouge, Louisiana 70806, United States
| | - Yuanbing Mao
- Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - James A Dorman
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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41
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Zhang P, Wang YX, Zhang P, Wang SA, Hu SX. Evaluation of Chemical Bonding in Actinyl(VI/V) Oxo-Crown-Ether Complexes for Actinide Series from Uranium to Curium. Inorg Chem 2020; 59:11953-11961. [PMID: 32806007 DOI: 10.1021/acs.inorgchem.0c00535] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The separation and management of nuclear waste is one of the problems that needs to be solved urgently, so finding a new radiation-proof and durable extractant to deal with nuclear waste is a difficult but desirable task. Since the successful isolation of the first pentavalent plutonium crown ether complex recently (Wang et al. CCS Chem. 2020, 2, 425-431), complexes with actinyl(V/VI) inserted into the cavity of 18-crown-6 ether (oxo-18C6), as well as their bonding character, need to be explored. Here we present a series of novel crown ether complexes containing actinyl(V/VI) and oxo-18C6 via computational prediction and analysis. On the basis of the calculations, actinyl(V/VI) are thermodynamically feasible and can be stabilized by oxo-18C6 ligand via six dative bonds between An ions and the oxo-18C6 O atoms in the "insertion" structure of [AnO2(18C6)]2+/+ complexes. The stability of actinyl(VI) species generally falls at minor actinides, ascribed to the reduced highest possible oxidation states of curium, which is mainly attributed to the mixing of bonding orbitals and non-bonding orbitals as well as the increase of occupation on partially 5f antibonding orbitals. It is found that the interactions between the actinyl(V/VI) and oxo-18C6 are mainly electronic interactions, with the well-known covalency contributions generally decreasing from uranium to curium due to energy degeneracy and spatial orbital contraction. This work would give a basic understanding of the coordination chemistry of actinyl(V/VI), which also provides inspirations on the design of new extractants for actinide separations.
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Affiliation(s)
- Peng Zhang
- Beijing Computational Science Research Center, Beijing 100193, China
| | - Ya-Xing Wang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Ping Zhang
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Shu-Ao Wang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Shu-Xian Hu
- Beijing Computational Science Research Center, Beijing 100193, China
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Barraza R, Allen MJ. Lanthanide Luminescence in Visible-Light-Promoted Photochemical Reactions. Molecules 2020; 25:molecules25173892. [PMID: 32858962 PMCID: PMC7503482 DOI: 10.3390/molecules25173892] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 11/17/2022] Open
Abstract
The excitation of lanthanides with visible light to promote photochemical reactions has garnered interest in recent years. Lanthanides serve as initiators for photochemical reactions because they exhibit visible-light-promoted 4f→5d transitions that lead to emissive states with electrochemical potentials that are more negative than the corresponding ground states. The lanthanides that have shown the most promising characteristics for visible-light promoted photoredox are SmII, EuII, and CeIII. By understanding the effects that ligands have on the 5d orbitals of SmII, EuII, and CeIII, luminescence and reactivity can be rationally modulated using coordination chemistry. This review briefly overviews the photochemical reactivity of SmII, EuII, and CeIII with visible light; the properties that influence the reactivity of these ions; and the research that has been reported towards modulating their photochemical-relevant properties using visible light and coordination chemistry.
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Thuéry P, Atoini Y, Harrowfield J. Functionalized Aromatic Dicarboxylate Ligands in Uranyl-Organic Assemblies: The Cases of Carboxycinnamate and 1,2-/1,3-Phenylenedioxydiacetate. Inorg Chem 2020; 59:2923-2936. [PMID: 32065529 DOI: 10.1021/acs.inorgchem.9b03273] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
2-Carboxycinnamic acid (ccnH2) and the isomeric 1,2- and 1,3-phenylenedioxydiacetic acids (1,2- and 1,3-pddaH2) have been used to synthesize eight uranyl ion complexes under solvo-hydrothermal conditions. In the four complexes [PPh4]2[UO2(ccn)(NO3)]2 (1), [PPh4]2[UO2(ccn)(dibf)]2 (2), [UO2(ccn)(bipy)]2 (3), and [Ni(R,S-Me6cyclam)][UO2(ccn)(HCOO)]2 (4), the ccn2- dianion retains a nearly planar geometry, which favors the formation of the centrosymmetric [UO2(ccn)]2 dimeric unit. Additional terminal ligands, either neutral (bipy = 2,2'-bipyridine) or anionic (nitrate, dibf- = 1,3-dihydro-3-oxo-1-isobenzofuranacetate, and formate, the two latter formed in situ), complete the uranyl coordination sphere, leading in all cases to discrete, dinuclear species. Sodium(I) bonding to the carboxylate/ether O4 site of the 1,2-pdda2- dianion in the two complexes [UO2Na(1,2-pdda)(OH)] (5) and [(UO2)2Na2(1,2-pdda)2(C2O4)] (6) results in this ligand being planar. Further lateral coordination to uranyl and sodium bonding to a uranyl oxo group allow formation of heterometallic diperiodic networks containing monoperiodic uranyl-only subunits. In the absence of Na+ cations, 1,2-pdda2- adopts a conformation in which one carboxylate group is tilted out of the ligand plane in [UO2(1,2-pdda)2Ni(cyclam)] (7) and diaxial carboxylato bonding to nickel(II) unites uranyl-only monoperiodic subunits into a diperiodic network. The 1,3-pdda2- ligand in [UO2(1,3-pdda)(H2O)] (8) is also nonplanar with one tilted carboxylate group, and the bridging bidentate nature of both carboxylate groups allows formation of a triperiodic framework in which both metal and ligand are four-coordinated nodes. While the emission spectra of complexes 1 and 5 display the vibronic progression considered typical of uranyl ion, those of complexes 2, 4, and 8 show broad emission bands which in the case of complex 4 completely replace the uranyl emission and which appear to be ligand-centered. The low energy of these broad bands can be rationalized in terms of the close association of certain ligand pairs within the structures.
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Affiliation(s)
- Pierre Thuéry
- NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Youssef Atoini
- ISIS, Université de Strasbourg, 8 allée Gaspard Monge, 67083 Strasbourg, France
| | - Jack Harrowfield
- ISIS, Université de Strasbourg, 8 allée Gaspard Monge, 67083 Strasbourg, France
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Abstract
Consideration of the extensive family of known uranyl ion complexes of polycarboxylate ligands shows that there are quite numerous examples of crystalline solids containing capsular, closed oligomeric species with the potential for use as selective heterogeneous photo-oxidation catalysts. None of them have yet been assessed for this purpose, and some have obvious deficiencies, although related framework species have been shown to have the necessary luminescence, porosity and, to some degree, selectivity. Aspects of ligand design and complex composition necessary for the synthesis of uranyl ion cages with appropriate luminescence and chemical properties for use in selective photo-oxidation catalysis have been analysed in relation to the characteristics of known capsules.
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Vettese GF, Morris K, Natrajan LS, Shaw S, Vitova T, Galanzew J, Jones DL, Lloyd JR. Multiple Lines of Evidence Identify U(V) as a Key Intermediate during U(VI) Reduction by Shewanella oneidensis MR1. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:2268-2276. [PMID: 31934763 DOI: 10.1021/acs.est.9b05285] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
As the dominant radionuclide by mass in many radioactive wastes, the control of uranium mobility in contaminated environments is of high concern. U speciation can be governed by microbial interactions, whereby metal-reducing bacteria are able to reduce soluble U(VI) to insoluble U(IV), providing a method for removal of U from contaminated groundwater. Although microbial U(VI) reduction is widely reported, the mechanism(s) for the transformation of U(VI) to relatively insoluble U(IV) phases are poorly understood. By combining a suite of analyses, including luminescence, U M4-edge high-energy resolved fluorescence detection-X-ray absorption near-edge structure (XANES), and U L3-edge XANES/extended X-ray absorption fine structure, we show that the microbial reduction of U(VI) by the model Fe(III)-reducing bacterium, Shewanella oneidensis MR1, proceeds via a single electron transfer to form a pentavalent U(V) intermediate which disproportionates to form U(VI) and U(IV). Furthermore, we have identified significant U(V) present in post reduction solid phases, implying that U(V) may be stabilized for up to 120.5 h.
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Affiliation(s)
- Gianni F Vettese
- Williamson Research Centre for Molecular Environmental Science and Research Centre for Radwaste Disposal, Department of Earth and Environmental Science, School of Natural Sciences , The University of Manchester , Oxford Road , Manchester M13 9PL , England
| | - Katherine Morris
- Williamson Research Centre for Molecular Environmental Science and Research Centre for Radwaste Disposal, Department of Earth and Environmental Science, School of Natural Sciences , The University of Manchester , Oxford Road , Manchester M13 9PL , England
| | - Louise S Natrajan
- Centre for Radiochemistry Research, Department of Chemistry, School of Natural Sciences , The University of Manchester , Oxford Road , Manchester M13 9PL , England
| | - Samuel Shaw
- Williamson Research Centre for Molecular Environmental Science and Research Centre for Radwaste Disposal, Department of Earth and Environmental Science, School of Natural Sciences , The University of Manchester , Oxford Road , Manchester M13 9PL , England
| | - Tonya Vitova
- Institute for Nuclear Waste Disposal (INE) , Karlsruhe Institute of Technology , Karlsruhe 76131 , Germany
| | - Jurij Galanzew
- Institute for Nuclear Waste Disposal (INE) , Karlsruhe Institute of Technology , Karlsruhe 76131 , Germany
| | - Debbie L Jones
- College of Environmental Sciences and Engineering , Bangor University , Bangor LL57 2DG , U.K
| | - Jonathan R Lloyd
- Williamson Research Centre for Molecular Environmental Science and Research Centre for Radwaste Disposal, Department of Earth and Environmental Science, School of Natural Sciences , The University of Manchester , Oxford Road , Manchester M13 9PL , England
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46
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Liu DD, Wang YL, Luo F, Liu QY. Rare Three-Dimensional Uranyl–Biphenyl-3,3′-disulfonyl-4,4′-dicarboxylate Frameworks: Crystal Structures, Proton Conductivity, and Luminescence. Inorg Chem 2020; 59:2952-2960. [DOI: 10.1021/acs.inorgchem.9b03323] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Dan-Dan Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Yu-Ling Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Feng Luo
- College of Biology, Chemistry and Material Science, East China Institute of Technology, Nanchang, Jiangxi 34400, P. R. China
| | - Qing-Yan Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
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47
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Thuéry P, Atoini Y, Harrowfield J. 1,3‐Adamantanedicarboxylate and 1,3‐Adamantanediacetate as Uranyl Ion Linkers: Effect of Counterions, Solvents and Differences in Flexibility. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900957] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pierre Thuéry
- NIMBE, CEA, CNRS Université Paris‐Saclay CEA Saclay 91191 Gif‐sur‐Yvette France
| | - Youssef Atoini
- ISIS Université de Strasbourg 8 allée Gaspard Monge 67083 Strasbourg France
| | - Jack Harrowfield
- ISIS Université de Strasbourg 8 allée Gaspard Monge 67083 Strasbourg France
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48
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Cowie BE, Purkis JM, Austin J, Love JB, Arnold PL. Thermal and Photochemical Reduction and Functionalization Chemistry of the Uranyl Dication, [UVIO2]2+. Chem Rev 2019; 119:10595-10637. [DOI: 10.1021/acs.chemrev.9b00048] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Bradley E. Cowie
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, The King’s Buildings, Edinburgh EH9 3FJ, U.K
| | - Jamie M. Purkis
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, The King’s Buildings, Edinburgh EH9 3FJ, U.K
| | - Jonathan Austin
- National Nuclear Laboratory, Chadwick House,
Warrington Road, Birchwood Park, Warrington WA3 6AE, U.K
| | - Jason B. Love
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, The King’s Buildings, Edinburgh EH9 3FJ, U.K
| | - Polly L. Arnold
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, The King’s Buildings, Edinburgh EH9 3FJ, U.K
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49
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Two uranyl-copper(II) bimetallic coordination polymers containing trans-3,3(pyridyl)acrylic acid: Structural variance through synthetic subtleties. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.05.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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50
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Thuéry P, Atoini Y, Harrowfield J. The sulfonate group as a ligand: a fine balance between hydrogen bonding and metal ion coordination in uranyl ion complexes. Dalton Trans 2019; 48:8756-8772. [PMID: 31120075 DOI: 10.1039/c9dt01024f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nine uranyl ion complexes have been synthesized using two kinds of sulfonate-containing ligands, i.e. 2-, 3- and 4-sulfobenzoic acids (2-, 3- and 4-SBH2), which include additional carboxylic donors, and p-sulfonatocalix[4]arene (H8C4S), with additional phenolic groups, and [Ni(cyclam)]2+, [Cu(R,S-Me6cyclam)]2+ or PPh4+ as counterions. [Ni(cyclam)][UO2(4-SB)2(H2O)2]·2CH3CN (1) and [Ni(cyclam)][UO2(3-SB)2(H2O)2] (2) are molecular species in which only the carboxylate groups are coordinated to uranyl, the sulfonate groups being essentially hydrogen bond acceptors. In contrast, uranyl κ1-O(S);κ1-O(C)-chelation is found in the four complexes involving 2-SB2-, different bridging interactions producing diverse geometries. [UO2(2-SB)2Ni(cyclam)]·H2O (3) crystallizes as a two-dimensional (2D) assembly with fes topology, in which uranyl ion dimeric subunits are bridged by six-coordinate NiII cations. Complexes [UO2(2-SB)2Cu(R,S-Me6cyclam)]2·2H2O (4) and [(UO2)2(2-SB)2(C2O4)Cu(R,S-Me6cyclam)] (5), obtained together from the same solution, are a molecular tetranuclear complex and a 2D species with fes topology, respectively, depending on the coordination number, 5 or 6, of the CuII cation. The complex [PPh4]2[(UO2)2(2-SB)3(H2O)]·H2O (6) is a one-dimensional (1D), ribbon-like coordination polymer with a layered packing of alternate cationic and anionic sheets. No heterometallic complex was obtained with H8C4S, but the copper-only compound [{Cu(R,S-Me6cyclam)}5(H3C4S)2]·17H2O (7) displays mixed coordination/hydrogen bonding association of the copper azamacrocycle complex with the phenolic groups. The complexes [PPh4]5[UO2(H4C4S)(H2O)4][UO2(H3C4S)(H2O)4]·14H2O (8) and [PPh4]3[UO2(H3C4S)(H2O)3]·9H2O (9) were crystallized from the same solution and are a molecular complex and a 1D polymer, respectively, with monodentate sulfonate coordination to uranyl, while [PPh4]2[UO2(H4C4S)(H2O)3]·11H2O (10) is also a 1D polymer. The anionic complexes in the last three complexes form layers (9) or double layers (8 and 10) separated from one another by hydrophobic layers of PPh4+ cations. The balance between coordination and hydrogen bonding interactions with the macrocyclic ligands provides an indication of the energy of the sulfonate coordinate bond. Complex 6 is the only luminescent species in this series, albeit with a low quantum yield of 3%, and its emission spectrum is typical of a uranyl complex with five equatorial donors.
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Affiliation(s)
- Pierre Thuéry
- NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France.
| | - Youssef Atoini
- ISIS, Université de Strasbourg, 8 allée Gaspard Monge, 67083 Strasbourg, France.
| | - Jack Harrowfield
- ISIS, Université de Strasbourg, 8 allée Gaspard Monge, 67083 Strasbourg, France.
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