Ce3SiI3 crystallizes in the cubic I4_132 space group. Ce(1) is bonded to two equivalent Si(1) and four equivalent I(1) atoms to form a mixture of edge and corner-sharing CeSi2I4 octahedra. The corner-sharing octahedral tilt angles range from 5-10°. Si(1) is bonded to six equivalent Ce(1) atoms to form edge-sharing SiCe6 octahedra. I(1) is bonded in a rectangular see-saw-like geometry to four equivalent Ce(1) atoms.
Ce3SiI3 crystallizes in the cubic I4_132 space group. Ce(1) is bonded to two equivalent Si(1) and four equivalent I(1) atoms to form a mixture of edge and corner-sharing CeSi2I4 octahedra. The corner-sharing octahedral tilt angles range from 5-10°. Both Ce(1)-Si(1) bond lengths are 2.91 Å. There are two shorter (3.23 Å) and two longer (3.31 Å) Ce(1)-I(1) bond lengths. Si(1) is bonded to six equivalent Ce(1) atoms to form edge-sharing SiCe6 octahedra. I(1) is bonded in a rectangular see-saw-like geometry to four equivalent Ce(1) atoms.