Mg6WMn crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent W(1), and two equivalent Mn(1) atoms to form distorted MgMg8Mn2W2 cuboctahedra that share corners with four equivalent W(1)Mg10Mn2 cuboctahedra, corners with four equivalent Mn(1)Mg10W2 cuboctahedra, corners with ten equivalent Mg(1)Mg8Mn2W2 cuboctahedra, edges with two equivalent Mg(1)Mg8Mn2W2 cuboctahedra, edges with two equivalent W(1)Mg10Mn2 cuboctahedra, edges with two equivalent Mn(1)Mg10W2 cuboctahedra, edges with four equivalent Mg(3)Mg10Mn2 cuboctahedra, faces with two equivalent Mg(3)Mg10Mn2 cuboctahedra, faces with two equivalent W(1)Mg10Mn2 cuboctahedra, faces with two equivalent Mn(1)Mg10W2 cuboctahedra, and faces with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra. In the second Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent W(1), and two equivalent Mn(1) atoms. In the third Mg site, Mg(3) is bonded to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Mn(1) atoms to form distorted MgMg10Mn2 cuboctahedra that share corners with six equivalent Mg(3)Mg10Mn2 cuboctahedra, edges with four equivalent Mn(1)Mg10W2 cuboctahedra, edges with eight equivalent Mg(1)Mg8Mn2W2 cuboctahedra, faces with two equivalent Mg(3)Mg10Mn2 cuboctahedra, faces with two equivalent Mn(1)Mg10W2 cuboctahedra, faces with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra, and faces with six equivalent W(1)Mg10Mn2 cuboctahedra. In the fourth Mg site, Mg(4) is bonded in a distorted bent 120 degrees geometry to two equivalent Mg(3), four equivalent Mg(1), four equivalent Mg(2), and two equivalent W(1) atoms. W(1) is bonded to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Mn(1) atoms to form WMg10Mn2 cuboctahedra that share corners with four equivalent Mn(1)Mg10W2 cuboctahedra, corners with six equivalent W(1)Mg10Mn2 cuboctahedra, corners with eight equivalent Mg(1)Mg8Mn2W2 cuboctahedra, edges with two equivalent Mn(1)Mg10W2 cuboctahedra, edges with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra, faces with two equivalent W(1)Mg10Mn2 cuboctahedra, faces with two equivalent Mn(1)Mg10W2 cuboctahedra, faces with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra, and faces with six equivalent Mg(3)Mg10Mn2 cuboctahedra. Mn(1) is bonded to two equivalent Mg(3), four equivalent Mg(1), four equivalent Mg(2), and two equivalent W(1) atoms to form MnMg10W2 cuboctahedra that share corners with four equivalent W(1)Mg10Mn2 cuboctahedra, corners with six equivalent Mn(1)Mg10W2 cuboctahedra, corners with eight equivalent Mg(1)Mg8Mn2W2 cuboctahedra, edges with two equivalent W(1)Mg10Mn2 cuboctahedra, edges with four equivalent Mg(3)Mg10Mn2 cuboctahedra, edges with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra, faces with two equivalent Mg(3)Mg10Mn2 cuboctahedra, faces with two equivalent W(1)Mg10Mn2 cuboctahedra, faces with two equivalent Mn(1)Mg10W2 cuboctahedra, and faces with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra.
Mg6WMn crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent W(1), and two equivalent Mn(1) atoms to form distorted MgMg8Mn2W2 cuboctahedra that share corners with four equivalent W(1)Mg10Mn2 cuboctahedra, corners with four equivalent Mn(1)Mg10W2 cuboctahedra, corners with ten equivalent Mg(1)Mg8Mn2W2 cuboctahedra, edges with two equivalent Mg(1)Mg8Mn2W2 cuboctahedra, edges with two equivalent W(1)Mg10Mn2 cuboctahedra, edges with two equivalent Mn(1)Mg10W2 cuboctahedra, edges with four equivalent Mg(3)Mg10Mn2 cuboctahedra, faces with two equivalent Mg(3)Mg10Mn2 cuboctahedra, faces with two equivalent W(1)Mg10Mn2 cuboctahedra, faces with two equivalent Mn(1)Mg10W2 cuboctahedra, and faces with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra. Both Mg(1)-Mg(1) bond lengths are 2.93 Å. Both Mg(1)-Mg(2) bond lengths are 3.01 Å. Both Mg(1)-Mg(3) bond lengths are 3.06 Å. Both Mg(1)-Mg(4) bond lengths are 3.05 Å. There is one shorter (3.06 Å) and one longer (3.10 Å) Mg(1)-W(1) bond length. There is one shorter (3.02 Å) and one longer (3.13 Å) Mg(1)-Mn(1) bond length. In the second Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent W(1), and two equivalent Mn(1) atoms. There is one shorter (2.85 Å) and one longer (3.01 Å) Mg(2)-Mg(2) bond length. There is one shorter (2.94 Å) and one longer (3.22 Å) Mg(2)-Mg(3) bond length. There is one shorter (2.93 Å) and one longer (3.23 Å) Mg(2)-Mg(4) bond length. Both Mg(2)-W(1) bond lengths are 2.98 Å. Both Mg(2)-Mn(1) bond lengths are 2.99 Å. In the third Mg site, Mg(3) is bonded to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Mn(1) atoms to form distorted MgMg10Mn2 cuboctahedra that share corners with six equivalent Mg(3)Mg10Mn2 cuboctahedra, edges with four equivalent Mn(1)Mg10W2 cuboctahedra, edges with eight equivalent Mg(1)Mg8Mn2W2 cuboctahedra, faces with two equivalent Mg(3)Mg10Mn2 cuboctahedra, faces with two equivalent Mn(1)Mg10W2 cuboctahedra, faces with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra, and faces with six equivalent W(1)Mg10Mn2 cuboctahedra. Both Mg(3)-Mg(4) bond lengths are 2.93 Å. Both Mg(3)-Mn(1) bond lengths are 2.94 Å. In the fourth Mg site, Mg(4) is bonded in a distorted bent 120 degrees geometry to two equivalent Mg(3), four equivalent Mg(1), four equivalent Mg(2), and two equivalent W(1) atoms. Both Mg(4)-W(1) bond lengths are 2.91 Å. W(1) is bonded to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(2), and two equivalent Mn(1) atoms to form WMg10Mn2 cuboctahedra that share corners with four equivalent Mn(1)Mg10W2 cuboctahedra, corners with six equivalent W(1)Mg10Mn2 cuboctahedra, corners with eight equivalent Mg(1)Mg8Mn2W2 cuboctahedra, edges with two equivalent Mn(1)Mg10W2 cuboctahedra, edges with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra, faces with two equivalent W(1)Mg10Mn2 cuboctahedra, faces with two equivalent Mn(1)Mg10W2 cuboctahedra, faces with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra, and faces with six equivalent Mg(3)Mg10Mn2 cuboctahedra. Both W(1)-Mn(1) bond lengths are 2.93 Å. Mn(1) is bonded to two equivalent Mg(3), four equivalent Mg(1), four equivalent Mg(2), and two equivalent W(1) atoms to form MnMg10W2 cuboctahedra that share corners with four equivalent W(1)Mg10Mn2 cuboctahedra, corners with six equivalent Mn(1)Mg10W2 cuboctahedra, corners with eight equivalent Mg(1)Mg8Mn2W2 cuboctahedra, edges with two equivalent W(1)Mg10Mn2 cuboctahedra, edges with four equivalent Mg(3)Mg10Mn2 cuboctahedra, edges with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra, faces with two equivalent Mg(3)Mg10Mn2 cuboctahedra, faces with two equivalent W(1)Mg10Mn2 cuboctahedra, faces with two equivalent Mn(1)Mg10W2 cuboctahedra, and faces with four equivalent Mg(1)Mg8Mn2W2 cuboctahedra.