Materials Data on Np3Be by Materials Project
BeNp3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Be is bonded in a distorted body-centered cubic geometry to fourteen Np atoms. There are eight shorter (2.73 Å) and six longer (3.15 Å) Be–Np bond lengths. There are two inequivalent Np sites. In the first Np site, Np is bonded in a distorted body-centered cubic geometry to four equivalent Be and four equivalent Np atoms. All Np–Np bond lengths are 2.73 Å. In the second Np site, Np is bonded in a 8-coordinate geometry to six equivalent Be and eight equivalent Np atoms.
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