MnGa2Te4 is beta indium sulfide-derived structured and crystallizes in the orthorhombic Pnma space group. Mn(1) is bonded to one Te(1), two equivalent Te(2), and three equivalent Te(3) atoms to form MnTe6 octahedra that share corners with four equivalent Mn(1)Te6 octahedra, corners with two equivalent Ga(2)Te4 tetrahedra, corners with three equivalent Ga(1)Te4 tetrahedra, edges with two equivalent Mn(1)Te6 octahedra, and edges with two equivalent Ga(1)Te4 tetrahedra. The corner-sharing octahedral tilt angles are 48°. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one Te(2), one Te(3), and two equivalent Te(1) atoms to form GaTe4 tetrahedra that share corners with three equivalent Mn(1)Te6 octahedra,  a cornercorner with one Ga(2)Te4 tetrahedra, corners with two equivalent Ga(1)Te4 tetrahedra, and edges with two equivalent Mn(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 60-72°. In the second Ga site, Ga(2) is bonded to one Te(2) and three equivalent Te(4) atoms to form GaTe4 tetrahedra that share corners with two equivalent Mn(1)Te6 octahedra,  a cornercorner with one Ga(1)Te4 tetrahedra, corners with two equivalent Ga(2)Te4 tetrahedra, and edges with two equivalent Ga(2)Te4 tetrahedra. The corner-sharing octahedral tilt angles are 64°. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted T-shaped geometry to one Mn(1) and two equivalent Ga(1) atoms. In the second Te site, Te(2) is bonded to two equivalent Mn(1), one Ga(1), and one Ga(2) atom to form corner-sharing TeMn2Ga2 tetrahedra. In the third Te site, Te(3) is bonded in a rectangular see-saw-like geometry to three equivalent Mn(1) and one Ga(1) atom. In the fourth Te site, Te(4) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ga(2) atoms.
MnGa2Te4 is beta indium sulfide-derived structured and crystallizes in the orthorhombic Pnma space group. Mn(1) is bonded to one Te(1), two equivalent Te(2), and three equivalent Te(3) atoms to form MnTe6 octahedra that share corners with four equivalent Mn(1)Te6 octahedra, corners with two equivalent Ga(2)Te4 tetrahedra, corners with three equivalent Ga(1)Te4 tetrahedra, edges with two equivalent Mn(1)Te6 octahedra, and edges with two equivalent Ga(1)Te4 tetrahedra. The corner-sharing octahedral tilt angles are 48°. The Mn(1)-Te(1) bond length is 2.89 Å. Both Mn(1)-Te(2) bond lengths are 2.96 Å. There are two shorter (2.88 Å) and one longer (2.91 Å) Mn(1)-Te(3) bond length. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one Te(2), one Te(3), and two equivalent Te(1) atoms to form GaTe4 tetrahedra that share corners with three equivalent Mn(1)Te6 octahedra,  a cornercorner with one Ga(2)Te4 tetrahedra, corners with two equivalent Ga(1)Te4 tetrahedra, and edges with two equivalent Mn(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 60-72°. The Ga(1)-Te(2) bond length is 2.68 Å. The Ga(1)-Te(3) bond length is 2.65 Å. Both Ga(1)-Te(1) bond lengths are 2.69 Å. In the second Ga site, Ga(2) is bonded to one Te(2) and three equivalent Te(4) atoms to form GaTe4 tetrahedra that share corners with two equivalent Mn(1)Te6 octahedra,  a cornercorner with one Ga(1)Te4 tetrahedra, corners with two equivalent Ga(2)Te4 tetrahedra, and edges with two equivalent Ga(2)Te4 tetrahedra. The corner-sharing octahedral tilt angles are 64°. The Ga(2)-Te(2) bond length is 2.68 Å. There is one shorter (2.71 Å) and two longer (2.72 Å) Ga(2)-Te(4) bond lengths. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted T-shaped geometry to one Mn(1) and two equivalent Ga(1) atoms. In the second Te site, Te(2) is bonded to two equivalent Mn(1), one Ga(1), and one Ga(2) atom to form corner-sharing TeMn2Ga2 tetrahedra. In the third Te site, Te(3) is bonded in a rectangular see-saw-like geometry to three equivalent Mn(1) and one Ga(1) atom. In the fourth Te site, Te(4) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ga(2) atoms.