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Title: Na2(UO2)(BO3): An All-Uranium(V) Borate Synthesized under Mild Hydrothermal Conditions

Journal Article · · Inorganic Chemistry
 [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [1];  [2]; ORCiD logo [1]
  1. Univ. of South Carolina, Columbia, SC (United States). Dept. of Chemistry and Biochemistry; Univ. of South Carolina, Columbia, SC (United States). Center for Hierarchical Wasteform Materials
  2. Univ. of South Carolina, Columbia, SC (United States). Center for Hierarchical Wasteform Materials; Univ. of South Carolina, Columbia, SC (United States). Dept. of Mechanical Engineering
  3. Univ. of South Carolina, Columbia, SC (United States). Dept. of Chemical Engineering

The first entirely pentavalent uranium borate, Na2(UO2)(BO3), was synthesized under mild hydrothermal conditions. The single-crystal structure was solved in the orthorhombic space group Cmcm with a = 10.0472(3) Å, b = 6.5942(2) Å, and c = 6.9569(2) Å. Magnetic susceptibility measurements revealed an antiferromagnetic transition at 12 K and an effective magnetic moment of 2.33 μB. Finally, density functional theory calculations indicated dynamic stability of the structure above 0 K.

Research Organization:
Energy Frontier Research Centers (EFRC), Washington, D.C. (United States). Center for Hierarchical Waste Form Materials (CHWM)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0016574
OSTI ID:
1470521
Journal Information:
Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 8 Vol. 57; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Two-Dimensional Uranyl Borates: From Conventional to Extreme Synthetic Conditions: Two-Dimensional Uranyl Borates: From Conventional to Extreme Synthetic Conditions journal January 2020
Moderate supercritical synthesis as a facile route to mixed-valent uranium( iv , v ) and ( v , vi ) silicates journal January 2018
Flux crystal growth: a versatile technique to reveal the crystal chemistry of complex uranium oxides journal January 2019