PbIn6Te10 crystallizes in the monoclinic C2 space group. There are six inequivalent In sites. In the first In site, In(1) is bonded to one Te(2), one Te(5), and two equivalent Te(9) atoms to form a mixture of corner and edge-sharing InTe4 tetrahedra. In the second In site, In(2) is bonded to one Te(10), one Te(11), one Te(2), and one Te(4) atom to form a mixture of corner and edge-sharing InTe4 tetrahedra. In the third In site, In(3) is bonded to one Te(1), one Te(10), one Te(11), and one Te(6) atom to form a mixture of corner and edge-sharing InTe4 tetrahedra. In the fourth In site, In(4) is bonded to one Te(3), one Te(4), one Te(7), and one Te(9) atom to form corner-sharing InTe4 tetrahedra. In the fifth In site, In(5) is bonded to one Te(10), one Te(3), one Te(5), and one Te(8) atom to form corner-sharing InTe4 tetrahedra. In the sixth In site, In(6) is bonded to one Te(11), one Te(3), one Te(6), and one Te(8) atom to form corner-sharing InTe4 tetrahedra. Pb(1) is bonded in a 6-coordinate geometry to one Te(1), one Te(2), one Te(4), one Te(6), one Te(7), and one Te(8) atom. There are eleven inequivalent Te sites. In the first Te site, Te(7) is bonded in a distorted water-like geometry to two equivalent In(4) and two equivalent Pb(1) atoms. In the second Te site, Te(8) is bonded in a distorted trigonal non-coplanar geometry to one In(5), one In(6), and one Pb(1) atom. In the third Te site, Te(9) is bonded in a distorted T-shaped geometry to one In(4) and two equivalent In(1) atoms. In the fourth Te site, Te(10) is bonded in a distorted T-shaped geometry to one In(2), one In(3), and one In(5) atom. In the fifth Te site, Te(11) is bonded in a distorted T-shaped geometry to one In(2), one In(3), and one In(6) atom. In the sixth Te site, Te(1) is bonded in a distorted L-shaped geometry to two equivalent In(3) and two equivalent Pb(1) atoms. In the seventh Te site, Te(2) is bonded in a distorted L-shaped geometry to one In(1), one In(2), and one Pb(1) atom. In the eighth Te site, Te(3) is bonded in a trigonal non-coplanar geometry to one In(4), one In(5), and one In(6) atom. In the ninth Te site, Te(4) is bonded in a 3-coordinate geometry to one In(2), one In(4), and one Pb(1) atom. In the tenth Te site, Te(5) is bonded in an L-shaped geometry to one In(1) and one In(5) atom. In the eleventh Te site, Te(6) is bonded in a 3-coordinate geometry to one In(3), one In(6), and one Pb(1) atom.
PbIn6Te10 crystallizes in the monoclinic C2 space group. There are six inequivalent In sites. In the first In site, In(1) is bonded to one Te(2), one Te(5), and two equivalent Te(9) atoms to form a mixture of corner and edge-sharing InTe4 tetrahedra. The In(1)-Te(2) bond length is 2.80 Å. The In(1)-Te(5) bond length is 2.75 Å. There is one shorter (2.87 Å) and one longer (2.91 Å) In(1)-Te(9) bond length. In the second In site, In(2) is bonded to one Te(10), one Te(11), one Te(2), and one Te(4) atom to form a mixture of corner and edge-sharing InTe4 tetrahedra. The In(2)-Te(10) bond length is 2.85 Å. The In(2)-Te(11) bond length is 2.87 Å. The In(2)-Te(2) bond length is 2.77 Å. The In(2)-Te(4) bond length is 2.80 Å. In the third In site, In(3) is bonded to one Te(1), one Te(10), one Te(11), and one Te(6) atom to form a mixture of corner and edge-sharing InTe4 tetrahedra. The In(3)-Te(1) bond length is 2.80 Å. The In(3)-Te(10) bond length is 2.85 Å. The In(3)-Te(11) bond length is 2.84 Å. The In(3)-Te(6) bond length is 2.81 Å. In the fourth In site, In(4) is bonded to one Te(3), one Te(4), one Te(7), and one Te(9) atom to form corner-sharing InTe4 tetrahedra. The In(4)-Te(3) bond length is 2.85 Å. The In(4)-Te(4) bond length is 2.82 Å. The In(4)-Te(7) bond length is 2.82 Å. The In(4)-Te(9) bond length is 2.81 Å. In the fifth In site, In(5) is bonded to one Te(10), one Te(3), one Te(5), and one Te(8) atom to form corner-sharing InTe4 tetrahedra. The In(5)-Te(10) bond length is 2.87 Å. The In(5)-Te(3) bond length is 2.87 Å. The In(5)-Te(5) bond length is 2.75 Å. The In(5)-Te(8) bond length is 2.83 Å. In the sixth In site, In(6) is bonded to one Te(11), one Te(3), one Te(6), and one Te(8) atom to form corner-sharing InTe4 tetrahedra. The In(6)-Te(11) bond length is 2.84 Å. The In(6)-Te(3) bond length is 2.86 Å. The In(6)-Te(6) bond length is 2.82 Å. The In(6)-Te(8) bond length is 2.81 Å. Pb(1) is bonded in a 6-coordinate geometry to one Te(1), one Te(2), one Te(4), one Te(6), one Te(7), and one Te(8) atom. The Pb(1)-Te(1) bond length is 3.47 Å. The Pb(1)-Te(2) bond length is 3.53 Å. The Pb(1)-Te(4) bond length is 3.22 Å. The Pb(1)-Te(6) bond length is 3.24 Å. The Pb(1)-Te(7) bond length is 3.48 Å. The Pb(1)-Te(8) bond length is 3.24 Å. There are eleven inequivalent Te sites. In the first Te site, Te(7) is bonded in a distorted water-like geometry to two equivalent In(4) and two equivalent Pb(1) atoms. In the second Te site, Te(8) is bonded in a distorted trigonal non-coplanar geometry to one In(5), one In(6), and one Pb(1) atom. In the third Te site, Te(9) is bonded in a distorted T-shaped geometry to one In(4) and two equivalent In(1) atoms. In the fourth Te site, Te(10) is bonded in a distorted T-shaped geometry to one In(2), one In(3), and one In(5) atom. In the fifth Te site, Te(11) is bonded in a distorted T-shaped geometry to one In(2), one In(3), and one In(6) atom. In the sixth Te site, Te(1) is bonded in a distorted L-shaped geometry to two equivalent In(3) and two equivalent Pb(1) atoms. In the seventh Te site, Te(2) is bonded in a distorted L-shaped geometry to one In(1), one In(2), and one Pb(1) atom. In the eighth Te site, Te(3) is bonded in a trigonal non-coplanar geometry to one In(4), one In(5), and one In(6) atom. In the ninth Te site, Te(4) is bonded in a 3-coordinate geometry to one In(2), one In(4), and one Pb(1) atom. In the tenth Te site, Te(5) is bonded in an L-shaped geometry to one In(1) and one In(5) atom. In the eleventh Te site, Te(6) is bonded in a 3-coordinate geometry to one In(3), one In(6), and one Pb(1) atom.