LiMg6W crystallizes in the orthorhombic Amm2 space group. Li(1) is bonded to two equivalent Mg(3); four Mg(1,1); four Mg(2,2); and two equivalent W(1) atoms to form LiMg10W2 cuboctahedra that share corners with four equivalent W(1)Li2Mg10 cuboctahedra, corners with six equivalent Li(1)Mg10W2 cuboctahedra, edges with two equivalent W(1)Li2Mg10 cuboctahedra, edges with four equivalent Mg(3)Li2Mg10 cuboctahedra, faces with two equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent Mg(3)Li2Mg10 cuboctahedra, and faces with two equivalent W(1)Li2Mg10 cuboctahedra. There are six inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Li(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent W(1) atoms. In the second Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Li(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent W(1) atoms. In the third Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Li(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent W(1) atoms. In the fourth Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Li(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent W(1) atoms. In the fifth Mg site, Mg(3) is bonded to two equivalent Li(1); two equivalent Mg(4); four equivalent Mg(1); and four Mg(2,2) atoms to form distorted MgLi2Mg10 cuboctahedra that share corners with six equivalent Mg(3)Li2Mg10 cuboctahedra, edges with four equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent Mg(3)Li2Mg10 cuboctahedra, and faces with six equivalent W(1)Li2Mg10 cuboctahedra. In the sixth Mg site, Mg(4) is bonded in a distorted water-like geometry to two equivalent Mg(3); four Mg(1,1); four Mg(2,2); and two equivalent W(1) atoms. W(1) is bonded to two equivalent Li(1); two equivalent Mg(4); four Mg(1,1); and four Mg(2,2) atoms to form WLi2Mg10 cuboctahedra that share corners with four equivalent Li(1)Mg10W2 cuboctahedra, corners with six equivalent W(1)Li2Mg10 cuboctahedra, edges with two equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent W(1)Li2Mg10 cuboctahedra, and faces with six equivalent Mg(3)Li2Mg10 cuboctahedra.
LiMg6W crystallizes in the orthorhombic Amm2 space group. Li(1) is bonded to two equivalent Mg(3); four Mg(1,1); four Mg(2,2); and two equivalent W(1) atoms to form LiMg10W2 cuboctahedra that share corners with four equivalent W(1)Li2Mg10 cuboctahedra, corners with six equivalent Li(1)Mg10W2 cuboctahedra, edges with two equivalent W(1)Li2Mg10 cuboctahedra, edges with four equivalent Mg(3)Li2Mg10 cuboctahedra, faces with two equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent Mg(3)Li2Mg10 cuboctahedra, and faces with two equivalent W(1)Li2Mg10 cuboctahedra. Both Li(1)-Mg(3) bond lengths are 2.99 Å. There are two shorter (3.02 Å) and two longer (3.08 Å) Li(1)-Mg(1,1) bond lengths. All Li(1)-Mg(2,2) bond lengths are 3.03 Å. Both Li(1)-W(1) bond lengths are 3.17 Å. There are six inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Li(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent W(1) atoms. There is one shorter (3.12 Å) and one longer (3.22 Å) Mg(1)-Mg(1) bond length. Both Mg(1)-Mg(2) bond lengths are 3.04 Å. Both Mg(1)-Mg(3) bond lengths are 3.04 Å. Both Mg(1)-Mg(4) bond lengths are 3.04 Å. There is one shorter (3.04 Å) and one longer (3.06 Å) Mg(1)-W(1) bond length. In the second Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Li(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent W(1) atoms. Both Mg(1)-Mg(2) bond lengths are 3.04 Å. Both Mg(1)-Mg(3) bond lengths are 3.04 Å. Both Mg(1)-Mg(4) bond lengths are 3.04 Å. There is one shorter (3.04 Å) and one longer (3.06 Å) Mg(1)-W(1) bond length. In the third Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Li(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent W(1) atoms. There is one shorter (3.03 Å) and one longer (3.31 Å) Mg(2)-Mg(2) bond length. There is one shorter (3.01 Å) and one longer (3.11 Å) Mg(2)-Mg(3) bond length. There is one shorter (2.87 Å) and one longer (3.24 Å) Mg(2)-Mg(4) bond length. Both Mg(2)-W(1) bond lengths are 2.96 Å. In the fourth Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Li(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent W(1) atoms. There is one shorter (3.01 Å) and one longer (3.11 Å) Mg(2)-Mg(3) bond length. There is one shorter (2.87 Å) and one longer (3.24 Å) Mg(2)-Mg(4) bond length. Both Mg(2)-W(1) bond lengths are 2.96 Å. In the fifth Mg site, Mg(3) is bonded to two equivalent Li(1); two equivalent Mg(4); four equivalent Mg(1); and four Mg(2,2) atoms to form distorted MgLi2Mg10 cuboctahedra that share corners with six equivalent Mg(3)Li2Mg10 cuboctahedra, edges with four equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent Mg(3)Li2Mg10 cuboctahedra, and faces with six equivalent W(1)Li2Mg10 cuboctahedra. Both Mg(3)-Mg(4) bond lengths are 3.17 Å. In the sixth Mg site, Mg(4) is bonded in a distorted water-like geometry to two equivalent Mg(3); four Mg(1,1); four Mg(2,2); and two equivalent W(1) atoms. Both Mg(4)-W(1) bond lengths are 2.95 Å. W(1) is bonded to two equivalent Li(1); two equivalent Mg(4); four Mg(1,1); and four Mg(2,2) atoms to form WLi2Mg10 cuboctahedra that share corners with four equivalent Li(1)Mg10W2 cuboctahedra, corners with six equivalent W(1)Li2Mg10 cuboctahedra, edges with two equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent Li(1)Mg10W2 cuboctahedra, faces with two equivalent W(1)Li2Mg10 cuboctahedra, and faces with six equivalent Mg(3)Li2Mg10 cuboctahedra.