Ce7Pt3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 7-coordinate geometry to three equivalent Ce(3) and four equivalent Pt(1) atoms. In the second Ce site, Ce(3) is bonded in a 4-coordinate geometry to three equivalent Ce(1) and four equivalent Pt(1) atoms. In the third Ce site, Ce(2) is bonded in a 6-coordinate geometry to six equivalent Pt(1) atoms. Pt(1) is bonded in a 12-coordinate geometry to two equivalent Ce(2), four equivalent Ce(1), four equivalent Ce(3), and two equivalent Pt(1) atoms.
Ce7Pt3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 7-coordinate geometry to three equivalent Ce(3) and four equivalent Pt(1) atoms. There are two shorter (2.91 Å) and one longer (2.96 Å) Ce(1)-Ce(3) bond length. There are two shorter (3.37 Å) and two longer (3.50 Å) Ce(1)-Pt(1) bond lengths. In the second Ce site, Ce(3) is bonded in a 4-coordinate geometry to three equivalent Ce(1) and four equivalent Pt(1) atoms. There are two shorter (2.94 Å) and two longer (2.98 Å) Ce(3)-Pt(1) bond lengths. In the third Ce site, Ce(2) is bonded in a 6-coordinate geometry to six equivalent Pt(1) atoms. There are three shorter (3.00 Å) and three longer (3.30 Å) Ce(2)-Pt(1) bond lengths. Pt(1) is bonded in a 12-coordinate geometry to two equivalent Ce(2), four equivalent Ce(1), four equivalent Ce(3), and two equivalent Pt(1) atoms. Both Pt(1)-Pt(1) bond lengths are 3.13 Å.