LaPtSn crystallizes in the hexagonal P-62m space group. La(1) is bonded in a 11-coordinate geometry to one Pt(2), four equivalent Pt(1), and six equivalent Sn(1) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to six equivalent La(1) and three equivalent Sn(1) atoms. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent Sn(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to six equivalent La(1), two equivalent Pt(1), and two equivalent Pt(2) atoms.
LaPtSn crystallizes in the hexagonal P-62m space group. La(1) is bonded in a 11-coordinate geometry to one Pt(2), four equivalent Pt(1), and six equivalent Sn(1) atoms. The La(1)-Pt(2) bond length is 3.18 Å. All La(1)-Pt(1) bond lengths are 3.13 Å. There are two shorter (3.34 Å) and four longer (3.48 Å) La(1)-Sn(1) bond lengths. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to six equivalent La(1) and three equivalent Sn(1) atoms. All Pt(1)-Sn(1) bond lengths are 2.94 Å. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent Sn(1) atoms. All Pt(2)-Sn(1) bond lengths are 2.84 Å. Sn(1) is bonded in a 10-coordinate geometry to six equivalent La(1), two equivalent Pt(1), and two equivalent Pt(2) atoms.