Abstract
The binary oxide Np2O5 has been synthesized by mild hydrothermal reaction and its crystal structure has been determined. It is monoclinic, P2/c, Z = 4, a = 8.168(2), b = 6.584(1), c = 9.313(1) Å, β = 116.09(1)°, V = 449.8(2) Å3. The structure contains neptunyl square and pentagonal bipyramids that are linked into sheets by edge-sharing. Cation-cation interactions occur within the sheet of polyhedra and provide linkages of the sheets into a three-dimensional structure. Np2O5 undergoes antiferromagnetic ordering at 22(3) K, the highest magnetic ordering temperature observed for any neptunyl compound, and is only the second neptunyl compound found to order antiferromagnetically. Copyright © 2007 American Chemical Society.
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CITATION STYLE
Forbes, T. Z., Burns, P. C., Skanthakumar, S., & Soderholm, L. (2007). Synthesis, structure, and magnetism of Np2O5. Journal of the American Chemical Society, 129(10), 2760–2761. https://doi.org/10.1021/ja069250r
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