MgMnTe4 is Pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. Mg(1) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form MgTe6 octahedra that share corners with four equivalent Mg(1)Te6 octahedra, corners with eight equivalent Mn(1)Te6 octahedra, corners with two equivalent Te(1)MgMn2Te tetrahedra, and corners with four equivalent Te(2)Mg2MnTe tetrahedra. The corner-sharing octahedral tilt angles range from 64-66°. Mn(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form MnTe6 octahedra that share corners with four equivalent Mn(1)Te6 octahedra, corners with eight equivalent Mg(1)Te6 octahedra, corners with two equivalent Te(2)Mg2MnTe tetrahedra, and corners with four equivalent Te(1)MgMn2Te tetrahedra. The corner-sharing octahedral tilt angles range from 63-65°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one Mg(1), two equivalent Mn(1), and one Te(1) atom to form distorted TeMgMn2Te tetrahedra that share  a cornercorner with one Mg(1)Te6 octahedra, corners with two equivalent Mn(1)Te6 octahedra, corners with seven equivalent Te(1)MgMn2Te tetrahedra, and corners with eight equivalent Te(2)Mg2MnTe tetrahedra. The corner-sharing octahedral tilt angles range from 77-80°. In the second Te site, Te(2) is bonded to two equivalent Mg(1), one Mn(1), and one Te(2) atom to form distorted TeMg2MnTe tetrahedra that share  a cornercorner with one Mn(1)Te6 octahedra, corners with two equivalent Mg(1)Te6 octahedra, corners with seven equivalent Te(2)Mg2MnTe tetrahedra, and corners with eight equivalent Te(1)MgMn2Te tetrahedra. The corner-sharing octahedral tilt angles range from 75-79°.
MgMnTe4 is Pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. Mg(1) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form MgTe6 octahedra that share corners with four equivalent Mg(1)Te6 octahedra, corners with eight equivalent Mn(1)Te6 octahedra, corners with two equivalent Te(1)MgMn2Te tetrahedra, and corners with four equivalent Te(2)Mg2MnTe tetrahedra. The corner-sharing octahedral tilt angles range from 64-66°. Both Mg(1)-Te(1) bond lengths are 2.99 Å. All Mg(1)-Te(2) bond lengths are 2.96 Å. Mn(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form MnTe6 octahedra that share corners with four equivalent Mn(1)Te6 octahedra, corners with eight equivalent Mg(1)Te6 octahedra, corners with two equivalent Te(2)Mg2MnTe tetrahedra, and corners with four equivalent Te(1)MgMn2Te tetrahedra. The corner-sharing octahedral tilt angles range from 63-65°. Both Mn(1)-Te(2) bond lengths are 2.89 Å. All Mn(1)-Te(1) bond lengths are 2.91 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one Mg(1), two equivalent Mn(1), and one Te(1) atom to form distorted TeMgMn2Te tetrahedra that share  a cornercorner with one Mg(1)Te6 octahedra, corners with two equivalent Mn(1)Te6 octahedra, corners with seven equivalent Te(1)MgMn2Te tetrahedra, and corners with eight equivalent Te(2)Mg2MnTe tetrahedra. The corner-sharing octahedral tilt angles range from 77-80°. The Te(1)-Te(1) bond length is 2.81 Å. In the second Te site, Te(2) is bonded to two equivalent Mg(1), one Mn(1), and one Te(2) atom to form distorted TeMg2MnTe tetrahedra that share  a cornercorner with one Mn(1)Te6 octahedra, corners with two equivalent Mg(1)Te6 octahedra, corners with seven equivalent Te(2)Mg2MnTe tetrahedra, and corners with eight equivalent Te(1)MgMn2Te tetrahedra. The corner-sharing octahedral tilt angles range from 75-79°. The Te(2)-Te(2) bond length is 2.80 Å.