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Neptunium Diverges Sharply from Uranium and Plutonium in Crystalline Borate Matrixes: Insights into the Complex Behavior of the Early Actinides Relevant to Nuclear Waste Storage

Authors

  • Shuao Wang,

    1. Department of Civil Engineering and Geological Sciences
    2. Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (USA), Fax: (+1) 574-631-9236
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  • Evgeny V. Alekseev Dr.,

    1. Department of Civil Engineering and Geological Sciences
    2. Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (USA), Fax: (+1) 574-631-9236
    3. Department of Crystallography, University of Kiel, 24118 Kiel (Germany)
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  • Jie Ling Dr.,

    1. Department of Civil Engineering and Geological Sciences
    2. Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (USA), Fax: (+1) 574-631-9236
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  • S. Skanthakumar Dr. ,

    1. Chemistry Division, Argonne National Laboratory, Argonne, IL 60439 (USA)
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  • L. Soderholm Dr. ,

    1. Chemistry Division, Argonne National Laboratory, Argonne, IL 60439 (USA)
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  • Wulf Depmeier Prof. Dr.,

    1. Department of Crystallography, University of Kiel, 24118 Kiel (Germany)
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  • Thomas E. Albrecht-Schmitt Prof. Dr.

    1. Department of Civil Engineering and Geological Sciences
    2. Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556 (USA), Fax: (+1) 574-631-9236
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  • We are grateful for support provided by the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, Heavy Elements Program, U.S. Department of Energy, under Grants DE-FG02-01ER15187, DE-FG02-01ER16026. This material is based upon work supported as part of the Materials Science of Actinides, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001089, by Deutsche Forschungsgemeinschaft for support within the DE 412/30-2 research project, and under contract DE-AC02-06CH11357 at Argonne National Laboratory. We thank Professors Gregory S. Girolami and Peter C. Burns for helpful discussions.

Abstract

original image

Anders als die anderen: Neptuniumborate unterscheiden sich von Uran- und Plutoniumboraten: Sie liegen als gemischtvalente Verbindungen mit jeweils dreierlei Koordinationsumgebungen und Oxidationstufen vor (siehe Bild; Polyeder: NpIV hellblau, NpV dunkelblau, NpVI grün, B gelb; Kugeln: O rot, K oder Ba blau).

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