Materials Data on NpF3 by Materials Project
NpF3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Np3+ is bonded in a 5-coordinate geometry to eleven F1- atoms. There are five shorter (2.40 Å) and six longer (2.70 Å) Np–F bond lengths. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a 1-coordinate geometry to four equivalent Np3+ atoms. In the second F1- site, F1- is bonded in a trigonal planar geometry to three equivalent Np3+ atoms.
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