La20Mn8C12Te7 crystallizes in the cubic Fm-3m space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted L-shaped geometry to two equivalent C(1), one Te(2), and two equivalent Te(1) atoms. In the second La site, La(2) is bonded to three equivalent C(1) and three equivalent Te(1) atoms to form a mixture of distorted edge and corner-sharing LaTe3C3 octahedra. The corner-sharing octahedral tilt angles range from 21-45°. Mn(1) is bonded in a trigonal planar geometry to three equivalent C(1) atoms. C(1) is bonded to two equivalent La(1), two equivalent La(2), and two equivalent Mn(1) atoms to form distorted CLa4Mn2 octahedra that share corners with two equivalent Te(2)La12 cuboctahedra and edges with five equivalent C(1)La4Mn2 octahedra. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent La(2) atoms. In the second Te site, Te(2) is bonded to twelve equivalent La(1) atoms to form TeLa12 cuboctahedra that share corners with twenty-four equivalent C(1)La4Mn2 octahedra. The corner-sharing octahedral tilt angles are 43°.
La20Mn8C12Te7 crystallizes in the cubic Fm-3m space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted L-shaped geometry to two equivalent C(1), one Te(2), and two equivalent Te(1) atoms. Both La(1)-C(1) bond lengths are 2.52 Å. The La(1)-Te(2) bond length is 3.95 Å. Both La(1)-Te(1) bond lengths are 3.37 Å. In the second La site, La(2) is bonded to three equivalent C(1) and three equivalent Te(1) atoms to form a mixture of distorted edge and corner-sharing LaTe3C3 octahedra. The corner-sharing octahedral tilt angles range from 21-45°. All La(2)-C(1) bond lengths are 2.70 Å. All La(2)-Te(1) bond lengths are 3.39 Å. Mn(1) is bonded in a trigonal planar geometry to three equivalent C(1) atoms. All Mn(1)-C(1) bond lengths are 1.94 Å. C(1) is bonded to two equivalent La(1), two equivalent La(2), and two equivalent Mn(1) atoms to form distorted CLa4Mn2 octahedra that share corners with two equivalent Te(2)La12 cuboctahedra and edges with five equivalent C(1)La4Mn2 octahedra. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent La(2) atoms. In the second Te site, Te(2) is bonded to twelve equivalent La(1) atoms to form TeLa12 cuboctahedra that share corners with twenty-four equivalent C(1)La4Mn2 octahedra. The corner-sharing octahedral tilt angles are 43°.