PuSi3 crystallizes in the hexagonal P6_3/mmc space group. Pu(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of distorted corner and face-sharing PuSi12 cuboctahedra. Si(1) is bonded in a 10-coordinate geometry to four equivalent Pu(1) and six equivalent Si(1) atoms.
PuSi3 crystallizes in the hexagonal P6_3/mmc space group. Pu(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of distorted corner and face-sharing PuSi12 cuboctahedra. There are six shorter (2.94 Å) and six longer (2.97 Å) Pu(1)-Si(1) bond lengths. Si(1) is bonded in a 10-coordinate geometry to four equivalent Pu(1) and six equivalent Si(1) atoms. There are two shorter (2.52 Å) and four longer (2.64 Å) Si(1)-Si(1) bond lengths.