TlIn2GaTe4 is I4/mcm-derived structured and crystallizes in the orthorhombic I222 space group. Tl(1) is bonded in a 6-coordinate geometry to two equivalent In(2) and four equivalent Te(1) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded to four equivalent Te(1) atoms to form InTe4 tetrahedra that share edges with two equivalent Ga(1)Te4 tetrahedra. In the second In site, In(2) is bonded in a 6-coordinate geometry to two equivalent Tl(1) and four equivalent Te(1) atoms. Ga(1) is bonded to four equivalent Te(1) atoms to form GaTe4 tetrahedra that share edges with two equivalent In(1)Te4 tetrahedra. Te(1) is bonded in a distorted L-shaped geometry to one Tl(1), one In(1), one In(2), and one Ga(1) atom.
TlIn2GaTe4 is I4/mcm-derived structured and crystallizes in the orthorhombic I222 space group. Tl(1) is bonded in a 6-coordinate geometry to two equivalent In(2) and four equivalent Te(1) atoms. Both Tl(1)-In(2) bond lengths are 3.54 Å. All Tl(1)-Te(1) bond lengths are 3.58 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded to four equivalent Te(1) atoms to form InTe4 tetrahedra that share edges with two equivalent Ga(1)Te4 tetrahedra. All In(1)-Te(1) bond lengths are 2.86 Å. In the second In site, In(2) is bonded in a 6-coordinate geometry to two equivalent Tl(1) and four equivalent Te(1) atoms. All In(2)-Te(1) bond lengths are 3.58 Å. Ga(1) is bonded to four equivalent Te(1) atoms to form GaTe4 tetrahedra that share edges with two equivalent In(1)Te4 tetrahedra. All Ga(1)-Te(1) bond lengths are 2.69 Å. Te(1) is bonded in a distorted L-shaped geometry to one Tl(1), one In(1), one In(2), and one Ga(1) atom.