NpSi3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Np(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of corner and face-sharing NpSi12 cuboctahedra. Si(1) is bonded in a distorted square co-planar geometry to four equivalent Np(1) atoms.
NpSi3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Np(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of corner and face-sharing NpSi12 cuboctahedra. All Np(1)-Si(1) bond lengths are 2.84 Å. Si(1) is bonded in a distorted square co-planar geometry to four equivalent Np(1) atoms.