CsNp3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. Cs(1) is bonded in a distorted body-centered cubic geometry to six equivalent Np(2) and eight equivalent Np(1) atoms. There are two inequivalent Np sites. In the first Np site, Np(1) is bonded to four equivalent Cs(1) and four equivalent Np(2) atoms to form a mixture of distorted edge, face, and corner-sharing NpCs4Np4 tetrahedra. In the second Np site, Np(2) is bonded in a 14-coordinate geometry to six equivalent Cs(1) and eight equivalent Np(1) atoms.
CsNp3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. Cs(1) is bonded in a distorted body-centered cubic geometry to six equivalent Np(2) and eight equivalent Np(1) atoms. All Cs(1)-Np(2) bond lengths are 3.49 Å. All Cs(1)-Np(1) bond lengths are 3.03 Å. There are two inequivalent Np sites. In the first Np site, Np(1) is bonded to four equivalent Cs(1) and four equivalent Np(2) atoms to form a mixture of distorted edge, face, and corner-sharing NpCs4Np4 tetrahedra. All Np(1)-Np(2) bond lengths are 3.03 Å. In the second Np site, Np(2) is bonded in a 14-coordinate geometry to six equivalent Cs(1) and eight equivalent Np(1) atoms.