The material structure described by SnW3O9 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-39°. In the second W site, W(2) is bonded to one O(2), one O(3), one O(7), one O(8), and two equivalent O(6) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-41°. In the third W site, W(3) is bonded to one O(4), one O(5), one O(7), one O(8), and two equivalent O(9) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-41°. Sn(1) is bonded in a 2-coordinate geometry to one O(2) and one O(7) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Sn(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one W(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one W(1) and one W(3) atom. In the sixth O site, O(6) is bonded in a linear geometry to two equivalent W(2) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one W(2), one W(3), and one Sn(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one W(2) and one W(3) atom. In the ninth O site, O(9) is bonded in a linear geometry to two equivalent W(3) atoms. is represented by the CIF card [CIF]
data_Sn(WO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.720
_cell_length_b   7.594
_cell_length_c   7.605
_cell_angle_alpha   60.247
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   387.066
_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
  Sn  Sn0  1  0.250  0.944  0.996  1.0
  Sn  Sn1  1  0.750  0.056  0.004  1.0
  W  W2  1  0.750  0.996  0.503  1.0
  W  W3  1  0.250  0.004  0.497  1.0
  W  W4  1  0.250  0.493  0.997  1.0
  W  W5  1  0.750  0.507  0.003  1.0
  W  W6  1  0.750  0.497  0.503  1.0
  W  W7  1  0.250  0.503  0.497  1.0
  O  O8  1  0.000  0.000  0.500  1.0
  O  O9  1  0.500  0.000  0.500  1.0
  O  O10  1  0.250  0.803  0.798  1.0
  O  O11  1  0.750  0.785  0.782  1.0
  O  O12  1  0.250  0.798  0.420  1.0
  O  O13  1  0.750  0.797  0.414  1.0
  O  O14  1  0.000  0.500  0.000  1.0
  O  O15  1  0.500  0.500  0.000  1.0
  O  O16  1  0.750  0.394  0.808  1.0
  O  O17  1  0.250  0.429  0.790  1.0
  O  O18  1  0.500  0.500  0.500  1.0
  O  O19  1  0.000  0.500  0.500  1.0
  O  O20  1  0.250  0.606  0.192  1.0
  O  O21  1  0.750  0.571  0.210  1.0
  O  O22  1  0.250  0.203  0.586  1.0
  O  O23  1  0.750  0.202  0.580  1.0
  O  O24  1  0.750  0.197  0.202  1.0
  O  O25  1  0.250  0.215  0.218  1.0
[/CIF]
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The material structure described by SnW3O9 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-39°. In the second W site, W(2) is bonded to one O(2), one O(3), one O(7), one O(8), and two equivalent O(6) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-41°. In the third W site, W(3) is bonded to one O(4), one O(5), one O(7), one O(8), and two equivalent O(9) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-41°. Sn(1) is bonded in a 2-coordinate geometry to one O(2) and one O(7) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent W(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Sn(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one W(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one W(1) and one W(3) atom. In the sixth O site, O(6) is bonded in a linear geometry to two equivalent W(2) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one W(2), one W(3), and one Sn(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one W(2) and one W(3) atom. In the ninth O site, O(9) is bonded in a linear geometry to two equivalent W(3) atoms. is represented by the CIF card [CIF]
data_Sn(WO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.720
_cell_length_b   7.594
_cell_length_c   7.605
_cell_angle_alpha   60.247
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   387.066
_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
  Sn  Sn0  1  0.250  0.944  0.996  1.0
  Sn  Sn1  1  0.750  0.056  0.004  1.0
  W  W2  1  0.750  0.996  0.503  1.0
  W  W3  1  0.250  0.004  0.497  1.0
  W  W4  1  0.250  0.493  0.997  1.0
  W  W5  1  0.750  0.507  0.003  1.0
  W  W6  1  0.750  0.497  0.503  1.0
  W  W7  1  0.250  0.503  0.497  1.0
  O  O8  1  0.000  0.000  0.500  1.0
  O  O9  1  0.500  0.000  0.500  1.0
  O  O10  1  0.250  0.803  0.798  1.0
  O  O11  1  0.750  0.785  0.782  1.0
  O  O12  1  0.250  0.798  0.420  1.0
  O  O13  1  0.750  0.797  0.414  1.0
  O  O14  1  0.000  0.500  0.000  1.0
  O  O15  1  0.500  0.500  0.000  1.0
  O  O16  1  0.750  0.394  0.808  1.0
  O  O17  1  0.250  0.429  0.790  1.0
  O  O18  1  0.500  0.500  0.500  1.0
  O  O19  1  0.000  0.500  0.500  1.0
  O  O20  1  0.250  0.606  0.192  1.0
  O  O21  1  0.750  0.571  0.210  1.0
  O  O22  1  0.250  0.203  0.586  1.0
  O  O23  1  0.750  0.202  0.580  1.0
  O  O24  1  0.750  0.197  0.202  1.0
  O  O25  1  0.250  0.215  0.218  1.0
[/CIF]
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