CePtIn crystallizes in the hexagonal P-62m space group. Ce(1) is bonded in a 11-coordinate geometry to one Pt(1), four equivalent Pt(2), and six equivalent In(1) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to three equivalent Ce(1) and six equivalent In(1) atoms. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to six equivalent Ce(1) and three equivalent In(1) atoms. In(1) is bonded in a 10-coordinate geometry to six equivalent Ce(1), two equivalent Pt(1), and two equivalent Pt(2) atoms.
CePtIn crystallizes in the hexagonal P-62m space group. Ce(1) is bonded in a 11-coordinate geometry to one Pt(1), four equivalent Pt(2), and six equivalent In(1) atoms. The Ce(1)-Pt(1) bond length is 3.21 Å. All Ce(1)-Pt(2) bond lengths are 3.08 Å. There are two shorter (3.28 Å) and four longer (3.44 Å) Ce(1)-In(1) bond lengths. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to three equivalent Ce(1) and six equivalent In(1) atoms. All Pt(1)-In(1) bond lengths are 2.80 Å. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to six equivalent Ce(1) and three equivalent In(1) atoms. All Pt(2)-In(1) bond lengths are 2.95 Å. In(1) is bonded in a 10-coordinate geometry to six equivalent Ce(1), two equivalent Pt(1), and two equivalent Pt(2) atoms.