Bi2Te2W3O16 crystallizes in the monoclinic C2/c space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 31-39°. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 31-39°. Bi(1) is bonded in a 8-coordinate geometry to one O(2), one O(6), one O(7), one O(8), two equivalent O(3), and two equivalent O(5) atoms. Te(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(6), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the second O site, O(5) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent Bi(1) atoms. In the third O site, O(6) is bonded in a bent 120 degrees geometry to one W(2), one Bi(1), and one Te(1) atom. In the fourth O site, O(7) is bonded in a distorted linear geometry to one W(1) and one Bi(1) atom. In the fifth O site, O(8) is bonded in a 3-coordinate geometry to one W(1), one Bi(1), and one Te(1) atom. In the sixth O site, O(1) is bonded in a distorted bent 150 degrees geometry to one W(1) and one W(2) atom. In the seventh O site, O(2) is bonded in a 3-coordinate geometry to one W(1), one Bi(1), and one Te(1) atom. In the eighth O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Bi(1) and one Te(1) atom.
Bi2Te2W3O16 crystallizes in the monoclinic C2/c space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 31-39°. The W(1)-O(1) bond length is 1.93 Å. The W(1)-O(2) bond length is 1.86 Å. The W(1)-O(4) bond length is 2.15 Å. The W(1)-O(5) bond length is 1.95 Å. The W(1)-O(7) bond length is 1.81 Å. The W(1)-O(8) bond length is 2.13 Å. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 31-39°. Both W(2)-O(1) bond lengths are 2.09 Å. Both W(2)-O(4) bond lengths are 1.84 Å. Both W(2)-O(6) bond lengths are 1.97 Å. Bi(1) is bonded in a 8-coordinate geometry to one O(2), one O(6), one O(7), one O(8), two equivalent O(3), and two equivalent O(5) atoms. The Bi(1)-O(2) bond length is 2.73 Å. The Bi(1)-O(6) bond length is 2.84 Å. The Bi(1)-O(7) bond length is 2.33 Å. The Bi(1)-O(8) bond length is 2.50 Å. There is one shorter (2.42 Å) and one longer (2.78 Å) Bi(1)-O(3) bond length. There is one shorter (2.23 Å) and one longer (2.34 Å) Bi(1)-O(5) bond length. Te(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(6), and one O(8) atom. The Te(1)-O(2) bond length is 2.38 Å. The Te(1)-O(3) bond length is 1.89 Å. The Te(1)-O(6) bond length is 2.00 Å. The Te(1)-O(8) bond length is 1.91 Å. There are eight inequivalent O sites. In the first O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the second O site, O(5) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent Bi(1) atoms. In the third O site, O(6) is bonded in a bent 120 degrees geometry to one W(2), one Bi(1), and one Te(1) atom. In the fourth O site, O(7) is bonded in a distorted linear geometry to one W(1) and one Bi(1) atom. In the fifth O site, O(8) is bonded in a 3-coordinate geometry to one W(1), one Bi(1), and one Te(1) atom. In the sixth O site, O(1) is bonded in a distorted bent 150 degrees geometry to one W(1) and one W(2) atom. In the seventh O site, O(2) is bonded in a 3-coordinate geometry to one W(1), one Bi(1), and one Te(1) atom. In the eighth O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Bi(1) and one Te(1) atom.