CePt2In2 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 14-coordinate geometry to one Pt(2), two equivalent Pt(1), two equivalent Pt(3), one In(4), two equivalent In(1), three equivalent In(2), and three equivalent In(3) atoms. In the second Ce site, Ce(2) is bonded in a 7-coordinate geometry to two equivalent Pt(2), two equivalent Pt(3), and three equivalent Pt(4) atoms. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 8-coordinate geometry to two equivalent Ce(1), one In(2), two equivalent In(4), and three equivalent In(3) atoms. In the second Pt site, Pt(2) is bonded in a 8-coordinate geometry to one Ce(1), two equivalent Ce(2), two equivalent In(3), and three equivalent In(1) atoms. In the third Pt site, Pt(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), one In(1), one In(4), and three equivalent In(2) atoms. In the fourth Pt site, Pt(4) is bonded in a 6-coordinate geometry to three equivalent Ce(2) and three equivalent In(4) atoms. There are four inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to two equivalent Ce(1), one Pt(3), and three equivalent Pt(2) atoms. In the second In site, In(2) is bonded in a 4-coordinate geometry to three equivalent Ce(1), one Pt(1), and three equivalent Pt(3) atoms. In the third In site, In(3) is bonded in a 5-coordinate geometry to three equivalent Ce(1), two equivalent Pt(2), and three equivalent Pt(1) atoms. In the fourth In site, In(4) is bonded in a 6-coordinate geometry to one Ce(1), one Pt(3), two equivalent Pt(1), and three equivalent Pt(4) atoms.
CePt2In2 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 14-coordinate geometry to one Pt(2), two equivalent Pt(1), two equivalent Pt(3), one In(4), two equivalent In(1), three equivalent In(2), and three equivalent In(3) atoms. The Ce(1)-Pt(2) bond length is 2.87 Å. Both Ce(1)-Pt(1) bond lengths are 3.21 Å. Both Ce(1)-Pt(3) bond lengths are 3.26 Å. The Ce(1)-In(4) bond length is 3.39 Å. Both Ce(1)-In(1) bond lengths are 3.44 Å. There are two shorter (3.32 Å) and one longer (3.38 Å) Ce(1)-In(2) bond length. There are two shorter (3.39 Å) and one longer (3.54 Å) Ce(1)-In(3) bond length. In the second Ce site, Ce(2) is bonded in a 7-coordinate geometry to two equivalent Pt(2), two equivalent Pt(3), and three equivalent Pt(4) atoms. Both Ce(2)-Pt(2) bond lengths are 3.18 Å. Both Ce(2)-Pt(3) bond lengths are 3.21 Å. There are two shorter (2.99 Å) and one longer (3.08 Å) Ce(2)-Pt(4) bond length. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 8-coordinate geometry to two equivalent Ce(1), one In(2), two equivalent In(4), and three equivalent In(3) atoms. The Pt(1)-In(2) bond length is 2.80 Å. Both Pt(1)-In(4) bond lengths are 2.94 Å. There are two shorter (2.80 Å) and one longer (2.83 Å) Pt(1)-In(3) bond length. In the second Pt site, Pt(2) is bonded in a 8-coordinate geometry to one Ce(1), two equivalent Ce(2), two equivalent In(3), and three equivalent In(1) atoms. Both Pt(2)-In(3) bond lengths are 2.94 Å. There is one shorter (2.86 Å) and two longer (2.89 Å) Pt(2)-In(1) bond lengths. In the third Pt site, Pt(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), one In(1), one In(4), and three equivalent In(2) atoms. The Pt(3)-In(1) bond length is 2.71 Å. The Pt(3)-In(4) bond length is 2.79 Å. There are two shorter (2.77 Å) and one longer (2.78 Å) Pt(3)-In(2) bond length. In the fourth Pt site, Pt(4) is bonded in a 6-coordinate geometry to three equivalent Ce(2) and three equivalent In(4) atoms. There are two shorter (2.77 Å) and one longer (2.82 Å) Pt(4)-In(4) bond length. There are four inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to two equivalent Ce(1), one Pt(3), and three equivalent Pt(2) atoms. In the second In site, In(2) is bonded in a 4-coordinate geometry to three equivalent Ce(1), one Pt(1), and three equivalent Pt(3) atoms. In the third In site, In(3) is bonded in a 5-coordinate geometry to three equivalent Ce(1), two equivalent Pt(2), and three equivalent Pt(1) atoms. In the fourth In site, In(4) is bonded in a 6-coordinate geometry to one Ce(1), one Pt(3), two equivalent Pt(1), and three equivalent Pt(4) atoms.