The compound described by 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. is represented by the Crystallographic Information File (CIF) [CIF]
data_Bi2Te2W3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.251
_cell_length_b   11.251
_cell_length_c   13.086
_cell_angle_alpha   57.055
_cell_angle_beta   57.055
_cell_angle_gamma   28.912
_symmetry_Int_Tables_number   1
_cell_volume   662.618
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Bi  Bi0  1  0.109  0.445  0.843  1.0
  Bi  Bi1  1  0.445  0.109  0.343  1.0
  Bi  Bi2  1  0.555  0.891  0.657  1.0
  Bi  Bi3  1  0.891  0.555  0.157  1.0
  Te  Te4  1  0.900  0.291  0.844  1.0
  Te  Te5  1  0.100  0.709  0.156  1.0
  Te  Te6  1  0.709  0.100  0.656  1.0
  Te  Te7  1  0.291  0.900  0.344  1.0
  W  W8  1  0.238  0.510  0.462  1.0
  W  W9  1  0.762  0.490  0.538  1.0
  W  W10  1  0.490  0.762  0.038  1.0
  W  W11  1  0.129  0.871  0.750  1.0
  W  W12  1  0.510  0.238  0.962  1.0
  W  W13  1  0.871  0.129  0.250  1.0
  O  O14  1  0.806  0.111  0.876  1.0
  O  O15  1  0.683  0.569  0.400  1.0
  O  O16  1  0.889  0.194  0.624  1.0
  O  O17  1  0.704  0.907  0.722  1.0
  O  O18  1  0.907  0.704  0.222  1.0
  O  O19  1  0.396  0.700  0.624  1.0
  O  O20  1  0.417  0.189  0.492  1.0
  O  O21  1  0.189  0.417  0.992  1.0
  O  O22  1  0.000  0.828  0.740  1.0
  O  O23  1  0.317  0.431  0.600  1.0
  O  O24  1  0.678  0.934  0.030  1.0
  O  O25  1  0.300  0.604  0.876  1.0
  O  O26  1  0.322  0.066  0.970  1.0
  O  O27  1  0.583  0.811  0.508  1.0
  O  O28  1  0.296  0.093  0.278  1.0
  O  O29  1  0.431  0.317  0.100  1.0
  O  O30  1  0.066  0.322  0.470  1.0
  O  O31  1  0.509  0.733  0.205  1.0
  O  O32  1  0.700  0.396  0.124  1.0
  O  O33  1  0.093  0.296  0.778  1.0
  O  O34  1  0.111  0.806  0.376  1.0
  O  O35  1  0.569  0.683  0.900  1.0
  O  O36  1  0.604  0.300  0.376  1.0
  O  O37  1  0.267  0.491  0.295  1.0
  O  O38  1  0.811  0.583  0.008  1.0
  O  O39  1  0.733  0.509  0.705  1.0
  O  O40  1  0.172  1.000  0.760  1.0
  O  O41  1  0.194  0.889  0.124  1.0
  O  O42  1  0.491  0.267  0.795  1.0
  O  O43  1  0.934  0.678  0.530  1.0
  O  O44  1  1.000  0.172  0.260  1.0
  O  O45  1  0.828  0.000  0.240  1.0
[/CIF]
.
The compound described by 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. is represented by the Crystallographic Information File (CIF) [CIF]
data_Bi2Te2W3O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.251
_cell_length_b   11.251
_cell_length_c   13.086
_cell_angle_alpha   57.055
_cell_angle_beta   57.055
_cell_angle_gamma   28.912
_symmetry_Int_Tables_number   1
_cell_volume   662.618
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Bi  Bi0  1  0.109  0.445  0.843  1.0
  Bi  Bi1  1  0.445  0.109  0.343  1.0
  Bi  Bi2  1  0.555  0.891  0.657  1.0
  Bi  Bi3  1  0.891  0.555  0.157  1.0
  Te  Te4  1  0.900  0.291  0.844  1.0
  Te  Te5  1  0.100  0.709  0.156  1.0
  Te  Te6  1  0.709  0.100  0.656  1.0
  Te  Te7  1  0.291  0.900  0.344  1.0
  W  W8  1  0.238  0.510  0.462  1.0
  W  W9  1  0.762  0.490  0.538  1.0
  W  W10  1  0.490  0.762  0.038  1.0
  W  W11  1  0.129  0.871  0.750  1.0
  W  W12  1  0.510  0.238  0.962  1.0
  W  W13  1  0.871  0.129  0.250  1.0
  O  O14  1  0.806  0.111  0.876  1.0
  O  O15  1  0.683  0.569  0.400  1.0
  O  O16  1  0.889  0.194  0.624  1.0
  O  O17  1  0.704  0.907  0.722  1.0
  O  O18  1  0.907  0.704  0.222  1.0
  O  O19  1  0.396  0.700  0.624  1.0
  O  O20  1  0.417  0.189  0.492  1.0
  O  O21  1  0.189  0.417  0.992  1.0
  O  O22  1  0.000  0.828  0.740  1.0
  O  O23  1  0.317  0.431  0.600  1.0
  O  O24  1  0.678  0.934  0.030  1.0
  O  O25  1  0.300  0.604  0.876  1.0
  O  O26  1  0.322  0.066  0.970  1.0
  O  O27  1  0.583  0.811  0.508  1.0
  O  O28  1  0.296  0.093  0.278  1.0
  O  O29  1  0.431  0.317  0.100  1.0
  O  O30  1  0.066  0.322  0.470  1.0
  O  O31  1  0.509  0.733  0.205  1.0
  O  O32  1  0.700  0.396  0.124  1.0
  O  O33  1  0.093  0.296  0.778  1.0
  O  O34  1  0.111  0.806  0.376  1.0
  O  O35  1  0.569  0.683  0.900  1.0
  O  O36  1  0.604  0.300  0.376  1.0
  O  O37  1  0.267  0.491  0.295  1.0
  O  O38  1  0.811  0.583  0.008  1.0
  O  O39  1  0.733  0.509  0.705  1.0
  O  O40  1  0.172  1.000  0.760  1.0
  O  O41  1  0.194  0.889  0.124  1.0
  O  O42  1  0.491  0.267  0.795  1.0
  O  O43  1  0.934  0.678  0.530  1.0
  O  O44  1  1.000  0.172  0.260  1.0
  O  O45  1  0.828  0.000  0.240  1.0
[/CIF]
.