Ce3Ni6Si2 crystallizes in the cubic Im-3m space group. Ce(1) is bonded in a 12-coordinate geometry to eight equivalent Ni(1) and four equivalent Si(1) atoms. Ni(1) is bonded in a 12-coordinate geometry to four equivalent Ce(1), six equivalent Ni(1), and two equivalent Si(1) atoms. Si(1) is bonded to six equivalent Ce(1) and six equivalent Ni(1) atoms to form a mixture of corner and face-sharing SiCe6Ni6 cuboctahedra.
Ce3Ni6Si2 crystallizes in the cubic Im-3m space group. Ce(1) is bonded in a 12-coordinate geometry to eight equivalent Ni(1) and four equivalent Si(1) atoms. There are four shorter (2.78 Å) and four longer (2.99 Å) Ce(1)-Ni(1) bond lengths. All Ce(1)-Si(1) bond lengths are 3.11 Å. Ni(1) is bonded in a 12-coordinate geometry to four equivalent Ce(1), six equivalent Ni(1), and two equivalent Si(1) atoms. There are four shorter (2.53 Å) and two longer (2.86 Å) Ni(1)-Ni(1) bond lengths. Both Ni(1)-Si(1) bond lengths are 2.44 Å. Si(1) is bonded to six equivalent Ce(1) and six equivalent Ni(1) atoms to form a mixture of corner and face-sharing SiCe6Ni6 cuboctahedra.