Synthesis and Crystal Structures of Volatile Neptunium(IV) β-Diketonates

Johnson, Aaron T.; Parker, T. Gannon; Dickens, Sara M.; Pfeiffer, Jana K.; Oliver, Allen G.; Wall, Donald; Wall, Nathalie A.; Finck, Martha R.; Carney, Kevin P.

doi:10.1021/acs.inorgchem.7b02290

Title: Synthesis and Crystal Structures of Volatile Neptunium(IV) β-Diketonates

Journal Article · Tue Oct 17 00:00:00 EDT 2017 · Inorganic Chemistry

DOI:https://doi.org/10.1021/acs.inorgchem.7b02290· OSTI ID:1478397

^[1]; Parker, T. Gannon ^[2]; Dickens, Sara M. ^[2];

^[1]; Oliver, Allen G. ^[3]; Wall, Donald ^[2]; Wall, Nathalie A. ^[2];

^[1];

^[1]

Idaho National Lab. (INL), Idaho Falls, ID (United States)
Washington State Univ., Pullman, WA (United States)
Univ. of Notre Dame, Notre Dame, IN (United States)

There is a large need for neptunium certified reference materials to support domestic nuclear forensics programs. These reference materials are required for quantification of Np forensic related samples. Isotopic separation is required to produce this material; traditional isotopic separation methods use electromagnetic separation techniques. Such methods require a gaseous introduction of Np into the separation source. This work sought to produce a volatile Np compound that would be suitable for the purpose of certified reference material production. ß-diketonates were identified as compounds likely able to serve this purpose. However, previously described synthesis requires NpCl4, which is not commercially available and prohibitively difficult to produce. A novel and facile procedure was developed here to successfully synthesize several tetravalent ß-diketonates of Np. They were characterized using FTIR and single crystal x-ray diffraction. The volatility of these compounds at elevated temperatures was then analyzed, and discussed. The synthesis procedure developed here presents a facile platform for further Np organometallic studies.

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Research Organization:: Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC07-05ID14517

OSTI ID:: 1478397

Report Number(s):: INL/JOU-16-40633-Rev000

Journal Information:: Inorganic Chemistry, Vol. 56, Issue 21; ISSN 0020-1669

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 4 works

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