ScMn6(Sn2Ge)2 crystallizes in the hexagonal P6/mmm space group. Sc(1) is bonded to two equivalent Sn(2) and six equivalent Ge(1) atoms to form distorted edge-sharing ScSn2Ge6 hexagonal bipyramids. Mn(1) is bonded in a 6-coordinate geometry to two equivalent Sn(1), two equivalent Sn(2), and two equivalent Ge(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to six equivalent Mn(1) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to one Sc(1), six equivalent Mn(1), and one Sn(2) atom. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Sc(1) and six equivalent Mn(1) atoms.
ScMn6(Sn2Ge)2 crystallizes in the hexagonal P6/mmm space group. Sc(1) is bonded to two equivalent Sn(2) and six equivalent Ge(1) atoms to form distorted edge-sharing ScSn2Ge6 hexagonal bipyramids. Both Sc(1)-Sn(2) bond lengths are 2.84 Å. All Sc(1)-Ge(1) bond lengths are 3.06 Å. Mn(1) is bonded in a 6-coordinate geometry to two equivalent Sn(1), two equivalent Sn(2), and two equivalent Ge(1) atoms. Both Mn(1)-Sn(1) bond lengths are 2.77 Å. Both Mn(1)-Sn(2) bond lengths are 2.78 Å. Both Mn(1)-Ge(1) bond lengths are 2.51 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to six equivalent Mn(1) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to one Sc(1), six equivalent Mn(1), and one Sn(2) atom. The Sn(2)-Sn(2) bond length is 2.92 Å. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Sc(1) and six equivalent Mn(1) atoms.