Applications of Alkali Metal Hydroxide Hydrofluxes to the Synthesis of Single-Crystal Ternary Actinide Oxides

Thomas, Evan L.; Stegman, Samantha; Skanthakumar, Suntharalingam; Wilson, Richard E.

doi:10.1002/chem.201904677

Title: Applications of Alkali Metal Hydroxide Hydrofluxes to the Synthesis of Single-Crystal Ternary Actinide Oxides

Journal Article · 04 December 2019 · Chemistry - A European Journal

DOI: https://doi.org/10.1002/chem.201904677 · OSTI ID:1595677

Thomas, Evan L. ^[1]; Stegman, Samantha ^[1]; Skanthakumar, Suntharalingam ^[1];

^[1]

Argonne National Lab. (ANL), Argonne, IL (United States)

Hydrofluxes are hydrated salts with melting points well below that of the dehydrated salt and boiling points well above that of water, affording a reaction medium, in which mild temperatures and pressures can be accessed for the synthesis of materials. Herein, the use of alkali metal hydroxide hydrofluxes for the synthesis of single crystal α-Na₂NpO₄ is described, and the single crystal X-ray structure of α-Na₂NpO₄, along with its X-ray absorption spectra and vibrational spectra, is reported. The ability to synthesize complex oxides of the actinides, in particular, transuranium materials, under mild conditions will serve to advance our ability to explore the structure–property relationships of the f elements.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1595677

Journal Information:: Chemistry - A European Journal, Journal Name: Chemistry - A European Journal Journal Issue: 7 Vol. 26; ISSN 0947-6539

Publisher:: ChemPubSoc EuropeCopyright Statement

Country of Publication:: United States

Language:: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
actinides
alkali metals
hydroxides
neptunium

Title: Applications of Alkali Metal Hydroxide Hydrofluxes to the Synthesis of Single-Crystal Ternary Actinide Oxides

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