Crystal structure of neptunium(V) sulfate hexahydrate, (NpO{sub 2}){sub 2}SO{sub 4} . 6H{sub 2}O
- Russian Academy of Sciences, Institute of Physical Chemistry (Russian Federation)
- Russian Academy of Sciences, Kurnakov Institute of General and Inorganic Chemistry (Russian Federation)
Single crystals of (NpO{sub 2}){sub 2}SO{sub 4} . 6H{sub 2}O are obtained, and their structure is determined. The structure is built of NpO{sub 2}{sup +} dioxo cations, SO{sub 4}{sup 2-} anions, and molecules of coordination and crystallization water. The NpO{sub 2}{sup +} ions are linked into cationic ribbons stretched along the [001] direction. In the ribbons, neptunoyl ions of one type act as monodentate ligands, whereas neptunoyl ions of the other type coordinate the neighboring neptunoyl groups by two oxygen atoms. The Np(1) and Np(2) atoms have oxygen environments in the shape of a pentagonal bipyramid whose equatorial plane consists of oxygen atoms of the neighboring dioxo cations, sulfate ions, and water molecules. The sulfate ion acts as a bidentate ligand bridging the two neighboring atoms Np(1) and Np(2). Six water molecules are revealed in the structure; one of them is a crystallization water molecule. Hydrogen bonds link cationic ribbons into a three-dimensional network.
- OSTI ID:
- 21091502
- Journal Information:
- Crystallography Reports, Journal Name: Crystallography Reports Journal Issue: 2 Vol. 51; ISSN 1063-7745; ISSN CYSTE3
- Country of Publication:
- United States
- Language:
- English
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