Lu6AgTe2 crystallizes in the orthorhombic Pnma space group. There are six inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 3-coordinate geometry to two equivalent Ag(1) and one Te(2) atom. In the second Lu site, Lu(2) is bonded to three equivalent Ag(1) and two equivalent Te(1) atoms to form distorted LuAg3Te2 square pyramids that share corners with two equivalent Lu(3)Ag2Te3 square pyramids, edges with three equivalent Lu(3)Ag2Te3 square pyramids, and edges with four equivalent Lu(2)Ag3Te2 square pyramids. In the third Lu site, Lu(3) is bonded to two equivalent Ag(1), one Te(1), and two equivalent Te(2) atoms to form distorted LuAg2Te3 square pyramids that share corners with two equivalent Lu(2)Ag3Te2 square pyramids, edges with two equivalent Lu(3)Ag2Te3 square pyramids, and edges with three equivalent Lu(2)Ag3Te2 square pyramids. In the fourth Lu site, Lu(4) is bonded in a 4-coordinate geometry to one Ag(1), one Te(1), and three equivalent Te(2) atoms. In the fifth Lu site, Lu(5) is bonded in a 1-coordinate geometry to one Ag(1) and one Te(1) atom. In the sixth Lu site, Lu(6) is bonded in a 4-coordinate geometry to two equivalent Te(1) and two equivalent Te(2) atoms. Ag(1) is bonded in a 9-coordinate geometry to one Lu(4), one Lu(5), two equivalent Lu(1), two equivalent Lu(3), and three equivalent Lu(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one Lu(3), one Lu(4), one Lu(5), two equivalent Lu(2), and two equivalent Lu(6) atoms to form distorted edge-sharing TeLu7 pentagonal bipyramids. In the second Te site, Te(2) is bonded in a 8-coordinate geometry to one Lu(1), two equivalent Lu(3), two equivalent Lu(6), and three equivalent Lu(4) atoms.
Lu6AgTe2 crystallizes in the orthorhombic Pnma space group. There are six inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 3-coordinate geometry to two equivalent Ag(1) and one Te(2) atom. Both Lu(1)-Ag(1) bond lengths are 2.94 Å. The Lu(1)-Te(2) bond length is 3.15 Å. In the second Lu site, Lu(2) is bonded to three equivalent Ag(1) and two equivalent Te(1) atoms to form distorted LuAg3Te2 square pyramids that share corners with two equivalent Lu(3)Ag2Te3 square pyramids, edges with three equivalent Lu(3)Ag2Te3 square pyramids, and edges with four equivalent Lu(2)Ag3Te2 square pyramids. There are two shorter (2.98 Å) and one longer (3.07 Å) Lu(2)-Ag(1) bond length. Both Lu(2)-Te(1) bond lengths are 3.15 Å. In the third Lu site, Lu(3) is bonded to two equivalent Ag(1), one Te(1), and two equivalent Te(2) atoms to form distorted LuAg2Te3 square pyramids that share corners with two equivalent Lu(2)Ag3Te2 square pyramids, edges with two equivalent Lu(3)Ag2Te3 square pyramids, and edges with three equivalent Lu(2)Ag3Te2 square pyramids. Both Lu(3)-Ag(1) bond lengths are 2.92 Å. The Lu(3)-Te(1) bond length is 3.03 Å. Both Lu(3)-Te(2) bond lengths are 3.09 Å. In the fourth Lu site, Lu(4) is bonded in a 4-coordinate geometry to one Ag(1), one Te(1), and three equivalent Te(2) atoms. The Lu(4)-Ag(1) bond length is 3.50 Å. The Lu(4)-Te(1) bond length is 3.01 Å. There are two shorter (3.16 Å) and one longer (3.27 Å) Lu(4)-Te(2) bond length. In the fifth Lu site, Lu(5) is bonded in a 1-coordinate geometry to one Ag(1) and one Te(1) atom. The Lu(5)-Ag(1) bond length is 3.39 Å. The Lu(5)-Te(1) bond length is 3.09 Å. In the sixth Lu site, Lu(6) is bonded in a 4-coordinate geometry to two equivalent Te(1) and two equivalent Te(2) atoms. Both Lu(6)-Te(1) bond lengths are 3.08 Å. Both Lu(6)-Te(2) bond lengths are 3.09 Å. Ag(1) is bonded in a 9-coordinate geometry to one Lu(4), one Lu(5), two equivalent Lu(1), two equivalent Lu(3), and three equivalent Lu(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one Lu(3), one Lu(4), one Lu(5), two equivalent Lu(2), and two equivalent Lu(6) atoms to form distorted edge-sharing TeLu7 pentagonal bipyramids. In the second Te site, Te(2) is bonded in a 8-coordinate geometry to one Lu(1), two equivalent Lu(3), two equivalent Lu(6), and three equivalent Lu(4) atoms.