Y6MnBi2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to two equivalent Mn(1) and two equivalent Bi(1) atoms to form a mixture of distorted corner and edge-sharing YMn2Bi2 tetrahedra. In the second Y site, Y(2) is bonded in a 5-coordinate geometry to one Mn(1) and four equivalent Bi(1) atoms. Mn(1) is bonded in a 9-coordinate geometry to three equivalent Y(2) and six equivalent Y(1) atoms. Bi(1) is bonded in a 9-coordinate geometry to three equivalent Y(1) and six equivalent Y(2) atoms.
Y6MnBi2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to two equivalent Mn(1) and two equivalent Bi(1) atoms to form a mixture of distorted corner and edge-sharing YMn2Bi2 tetrahedra. Both Y(1)-Mn(1) bond lengths are 2.97 Å. Both Y(1)-Bi(1) bond lengths are 3.23 Å. In the second Y site, Y(2) is bonded in a 5-coordinate geometry to one Mn(1) and four equivalent Bi(1) atoms. The Y(2)-Mn(1) bond length is 3.32 Å. All Y(2)-Bi(1) bond lengths are 3.36 Å. Mn(1) is bonded in a 9-coordinate geometry to three equivalent Y(2) and six equivalent Y(1) atoms. Bi(1) is bonded in a 9-coordinate geometry to three equivalent Y(1) and six equivalent Y(2) atoms.