MgSn2 crystallizes in the hexagonal P-62m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Sn(2), and six equivalent Sn(1) atoms to form a mixture of distorted face, corner, and edge-sharing MgMg3Sn9 cuboctahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to four equivalent Mg(1) atoms. In the second Sn site, Sn(2) is bonded in a distorted hexagonal planar geometry to six equivalent Mg(1) atoms.
MgSn2 crystallizes in the hexagonal P-62m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Sn(2), and six equivalent Sn(1) atoms to form a mixture of distorted face, corner, and edge-sharing MgMg3Sn9 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.27 Å. All Mg(1)-Sn(2) bond lengths are 3.27 Å. All Mg(1)-Sn(1) bond lengths are 3.28 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to four equivalent Mg(1) atoms. In the second Sn site, Sn(2) is bonded in a distorted hexagonal planar geometry to six equivalent Mg(1) atoms.