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Title: Polyoxometalates as ligands to synthesize, isolate and characterize compounds of rare isotopes on the microgram scale

Journal Article · · Nature Chemistry
 [1];  [2];  [2];  [3];  [2]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [2]
  1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Oregon State University, Corvallis, OR (United States)
  2. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  3. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  4. Oregon State University, Corvallis, OR (United States)

The synthesis and study of radioactive compounds are both inherently limited by their toxicity, cost and isotope scarcity. Traditional methods using small inorganic or organic complexes typically require milligrams of sample—per attempt—which for some isotopes is equivalent to the world’s annual supply. Here we demonstrate that polyoxometalates (POMs) enable the facile formation, crystallization, handling and detailed characterization of metal–ligand complexes from microgram quantities owing to their high molecular weight and controllable solubility properties. Three curium–POM complexes were prepared, using just 1–10 μg per synthesis of the rare isotope 248Cm3+, and characterized by single-crystal X-ray diffraction, showing an eight-coordinated Cm3+ centre. Moreover, spectrophotometric, fluorescence, NMR and Raman analyses of several f-block element–POM complexes, including 243Am3+ and 248Cm3+, showed otherwise unnoticeable differences between their solution versus solid-state chemistry, and actinide versus lanthanide behaviour. Furthermore, this POM-driven strategy represents a viable path to isolate even rarer complexes, notably with actinium or transcalifornium elements.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); University of Notre Dame, IN (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344; NA0003763
OSTI ID:
1971304
Alternate ID(s):
OSTI ID: 1886630
Report Number(s):
LLNL-JRNL-829648; 1045725; TRN: US2313558
Journal Information:
Nature Chemistry, Vol. 14, Issue 12; ISSN 1755-4330
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

Luminescent Polyoxotungstoeuropate Anion‐Pillared Layered Double Hydroxides journal February 2006
Redox Chemistry of Actinide Ions in Wells−Dawson Heteropolyoxoanion Complexes journal August 2003
Syntheses, Structures, and Spectroscopic Properties of Plutonium and Americium Phosphites and the Redetermination of the Ionic Radii of Pu(III) and Am(III) journal July 2012
Revisiting complexation thermodynamics of transplutonium elements up to einsteinium journal January 2018
NIST Inorganic Crystal Structure Database (ICSD) dataset January 2020
Electronic Structure and Properties of Berkelium Iodates journal September 2017
The Cambridge Structural Database
  • Groom, Colin R.; Bruno, Ian J.; Lightfoot, Matthew P.
  • Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, Vol. 72, Issue 2, p. 171-179 https://doi.org/10.1107/S2052520616003954
journal April 2016
Snapshots of Ce 70 Toroid Assembly from Solids and Solution journal June 2021
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Polyoxometalate-based complexes as ligands for the study of actinide chemistry journal January 2020
Studies on polyoxo and polyperoxo-metalates journal August 2000
Crystal structure of americium sulfate octahydrate journal September 1972
Organometallic Neptunium Chemistry journal August 2017
Heteropolytungstate complexes of the lanthanide elements. Part I. Preparation and reactions journal January 1971
Highly Luminescent and Stable Hydroxypyridinonate Complexes: A Step Towards New Curium Decontamination Strategies journal July 2014
Radioactive Element 93 journal June 1940
Intramolecular energy transfer and sensitized luminescence in an einsteinium β-diketone chelate and the lower lying electronic energy levels of Es(III) journal October 1970
Influence of a Heterocyclic Nitrogen-Donor Group on the Coordination of Trivalent Actinides and Lanthanides by Aminopolycarboxylate Complexants journal January 2018
Differentiating between Trivalent Lanthanides and Actinides journal June 2012
Synthesis and Characterization of Tris-chelate Complexes for Understanding f -Orbital Bonding in Later Actinides journal January 2019
Determination of the Hydration Number of Cm(III) in Various Aqueous Solutions journal January 1996
Beyond Charge Balance: Counter‐Cations in Polyoxometalate Chemistry journal January 2020
Luminescence Properties and Stability Constants of Curium(III) Complexes with Lacunary Heteropolyanions PW11O39 7- and SiW11O39 8- in Nitric Acid Solutions journal December 1997
Solvent effect on the preparation of H3PW12O40 supported on alumina journal October 2005
Advancing understanding of actinide( iii ) (Ac, Am, Cm) aqueous complexation chemistry journal January 2021
Syntheses and Structures of the Tungstoborate Anions journal February 1997
Characterization of berkelium(III) dipicolinate and borate compounds in solution and the solid state journal August 2016
The Transuranium Elements journal October 1946
Discriminating factors affecting incorporation: comparison of the fate of Eu3+–Cm3+ in the Sr carbonate–sulfate system journal January 2012
Probing the 5f electrons in a plutonyl(vi) cluster complex journal January 2009
Emergence of californium as the second transitional element in the actinide series journal April 2015
Structural and spectroscopic characterization of an einsteinium complex journal February 2021
Siderocalin-mediated recognition, sensitization, and cellular uptake of actinides journal August 2015
Polyoxometalates in solution: speciation under spotlight journal January 2020
Site-selective time resolved laser fluorescence spectroscopy of Eu and Cm doped LaPO 4 journal March 2012
Characterization of Americium and Curium Complexes with the Protein Lanmodulin: A Potential Macromolecular Mechanism for Actinide Mobility in the Environment journal September 2021
Ultra-selective ligand-driven separation of strategic actinides journal June 2019
Chemically responsive luminescent switching in transparent flexible self-supporting [EuW10O36]9−-agarose nanocomposite thin films journal January 2010
Synthesis and characterization of actinide-exchanged Preyssler heteropolyanions [AnP5W30O110]n− (An≡Th, Am, Cm) journal June 1998
Synthesis and Structural Examination of Complexes of Am(IV) and Other Tetravalent Actinides with Lacunary Heteropolyanion α 2 -P 2 W 17 O 61 10− journal October 2009
Lanmodulin: A Highly Selective Lanthanide-Binding Protein from a Lanthanide-Utilizing Bacterium journal October 2018
Luminescence study on solvation of americium(III), curium(III) and several lanthanide(III) ions in nonaqueous and binary mixed solvents journal January 2001
Hydrothermal synthesis, structure, Raman spectroscopy, and self-irradiation studies of 248Cm(IO3)3 journal December 2004
Actinide targets for the synthesis of super-heavy elements journal December 2015
Synthesis and Characterization of the Actinium Aquo Ion journal February 2017
The coordination properties and ionic radius of actinium: A 120-year-old enigma journal November 2021
Structural characterization of the brown six-electron-reduced form of dodecatungstoborate, K5[BW12O37(H2O)3]·13.5H2O journal January 1996
Structural Basis for Rare Earth Element Recognition by Methylobacterium extorquens Lanmodulin journal October 2018
Compression of curium pyrrolidine-dithiocarbamate enhances covalency journal July 2020
Supramolecular Assembly of U(IV) Clusters and Superatoms with Unconventional Countercations journal April 2020
The Anderson–Evans polyoxometalate: From inorganic building blocks via hybrid organic–inorganic structures to tomorrows “Bio-POM” journal January 2016
Circularly Polarized Luminescence of Curium: A New Characterization of the 5f Actinide Complexes journal September 2012
Isolation and characterization of a californium metallocene journal November 2021
Borotungstate Polyoxometalates: Multinuclear NMR Structural Characterization and Conversions in Solutions journal April 2011
Trends and new directions in the crystal chemistry of actinide oxo-clusters incorporated in polyoxometalates journal January 2020
Chelation and stabilization of berkelium in oxidation state +IV journal April 2017