CsNpO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. Cs(1) is bonded to twelve equivalent O(1) atoms to form CsO12 cuboctahedra that share corners with twelve equivalent Cs(1)O12 cuboctahedra, faces with six equivalent Cs(1)O12 cuboctahedra, and faces with eight equivalent Np(1)O6 octahedra. Np(1) is bonded to six equivalent O(1) atoms to form NpO6 octahedra that share corners with six equivalent Np(1)O6 octahedra and faces with eight equivalent Cs(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. O(1) is bonded in a distorted linear geometry to four equivalent Cs(1) and two equivalent Np(1) atoms.
CsNpO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. Cs(1) is bonded to twelve equivalent O(1) atoms to form CsO12 cuboctahedra that share corners with twelve equivalent Cs(1)O12 cuboctahedra, faces with six equivalent Cs(1)O12 cuboctahedra, and faces with eight equivalent Np(1)O6 octahedra. All Cs(1)-O(1) bond lengths are 3.10 Å. Np(1) is bonded to six equivalent O(1) atoms to form NpO6 octahedra that share corners with six equivalent Np(1)O6 octahedra and faces with eight equivalent Cs(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. All Np(1)-O(1) bond lengths are 2.20 Å. O(1) is bonded in a distorted linear geometry to four equivalent Cs(1) and two equivalent Np(1) atoms.