CePt5 crystallizes in the hexagonal P6/mmm space group. Ce(1) is bonded in a distorted hexagonal planar geometry to six equivalent Pt(1) and twelve equivalent Pt(2) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 12-coordinate geometry to three equivalent Ce(1), three equivalent Pt(1), and six equivalent Pt(2) atoms. In the second Pt site, Pt(2) is bonded to four equivalent Ce(1), four equivalent Pt(1), and four equivalent Pt(2) atoms to form a mixture of face, corner, and edge-sharing PtCe4Pt8 cuboctahedra.
CePt5 crystallizes in the hexagonal P6/mmm space group. Ce(1) is bonded in a distorted hexagonal planar geometry to six equivalent Pt(1) and twelve equivalent Pt(2) atoms. All Ce(1)-Pt(1) bond lengths are 3.10 Å. All Ce(1)-Pt(2) bond lengths are 3.48 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 12-coordinate geometry to three equivalent Ce(1), three equivalent Pt(1), and six equivalent Pt(2) atoms. All Pt(1)-Pt(1) bond lengths are 3.10 Å. All Pt(1)-Pt(2) bond lengths are 2.70 Å. In the second Pt site, Pt(2) is bonded to four equivalent Ce(1), four equivalent Pt(1), and four equivalent Pt(2) atoms to form a mixture of face, corner, and edge-sharing PtCe4Pt8 cuboctahedra. All Pt(2)-Pt(2) bond lengths are 2.68 Å.