The compound described by Zn(W2O3)2 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), two equivalent O(1), and two equivalent O(3) atoms to form WO5 square pyramids that share corners with four equivalent W(2)O6 octahedra, corners with two equivalent W(1)O5 square pyramids, edges with three equivalent W(2)O6 octahedra, and edges with three equivalent W(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 32-90°. In the second W site, W(2) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted WO6 octahedra that share corners with two equivalent W(2)O6 octahedra, corners with four equivalent W(1)O5 square pyramids, edges with two equivalent W(2)O6 octahedra, and edges with three equivalent W(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 0-48°. Zn(1) is bonded in a distorted see-saw-like geometry to two equivalent O(3) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent W(2) and four equivalent W(1) atoms to form OW6 octahedra that share corners with two equivalent O(4)Zn2W2 tetrahedra, corners with eight equivalent O(3)ZnW4 trigonal bipyramids, edges with two equivalent O(1)W6 octahedra, and edges with two equivalent O(3)ZnW4 trigonal bipyramids. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one W(1) and two equivalent W(2) atoms. In the third O site, O(3) is bonded to two equivalent W(1), two equivalent W(2), and one Zn(1) atom to form distorted OZnW4 trigonal bipyramids that share corners with four equivalent O(1)W6 octahedra,  a cornercorner with one O(3)ZnW4 trigonal bipyramid,  an edgeedge with one O(1)W6 octahedra, edges with two equivalent O(4)Zn2W2 tetrahedra, and edges with two equivalent O(3)ZnW4 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 16-73°. In the fourth O site, O(4) is bonded to two equivalent W(2) and two equivalent Zn(1) atoms to form OZn2W2 tetrahedra that share corners with two equivalent O(1)W6 octahedra, corners with two equivalent O(4)Zn2W2 tetrahedra, and edges with four equivalent O(3)ZnW4 trigonal bipyramids. The corner-sharing octahedral tilt angles are 5°. is represented by the CIF card [CIF]
data_Zn(W2O3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.680
_cell_length_b   5.680
_cell_length_c   16.542
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   146.680
_symmetry_Int_Tables_number   1
_cell_volume   293.119
_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
  Zn  Zn0  1  0.308  0.692  0.750  1.0
  Zn  Zn1  1  0.692  0.308  0.250  1.0
  W  W2  1  0.138  0.862  0.050  1.0
  W  W3  1  0.614  0.386  0.633  1.0
  W  W4  1  0.862  0.138  0.950  1.0
  W  W5  1  0.386  0.614  0.367  1.0
  W  W6  1  0.138  0.862  0.450  1.0
  W  W7  1  0.862  0.138  0.550  1.0
  W  W8  1  0.386  0.614  0.133  1.0
  W  W9  1  0.614  0.386  0.867  1.0
  O  O10  1  0.500  0.500  0.500  1.0
  O  O11  1  0.500  0.500  0.000  1.0
  O  O12  1  0.992  0.008  0.856  1.0
  O  O13  1  0.008  0.992  0.144  1.0
  O  O14  1  0.008  0.992  0.356  1.0
  O  O15  1  0.992  0.008  0.644  1.0
  O  O16  1  0.268  0.732  0.876  1.0
  O  O17  1  0.732  0.268  0.124  1.0
  O  O18  1  0.732  0.268  0.376  1.0
  O  O19  1  0.268  0.732  0.624  1.0
  O  O20  1  0.693  0.307  0.750  1.0
  O  O21  1  0.307  0.693  0.250  1.0
[/CIF]
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The compound described by Zn(W2O3)2 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), two equivalent O(1), and two equivalent O(3) atoms to form WO5 square pyramids that share corners with four equivalent W(2)O6 octahedra, corners with two equivalent W(1)O5 square pyramids, edges with three equivalent W(2)O6 octahedra, and edges with three equivalent W(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 32-90°. In the second W site, W(2) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted WO6 octahedra that share corners with two equivalent W(2)O6 octahedra, corners with four equivalent W(1)O5 square pyramids, edges with two equivalent W(2)O6 octahedra, and edges with three equivalent W(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 0-48°. Zn(1) is bonded in a distorted see-saw-like geometry to two equivalent O(3) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent W(2) and four equivalent W(1) atoms to form OW6 octahedra that share corners with two equivalent O(4)Zn2W2 tetrahedra, corners with eight equivalent O(3)ZnW4 trigonal bipyramids, edges with two equivalent O(1)W6 octahedra, and edges with two equivalent O(3)ZnW4 trigonal bipyramids. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one W(1) and two equivalent W(2) atoms. In the third O site, O(3) is bonded to two equivalent W(1), two equivalent W(2), and one Zn(1) atom to form distorted OZnW4 trigonal bipyramids that share corners with four equivalent O(1)W6 octahedra,  a cornercorner with one O(3)ZnW4 trigonal bipyramid,  an edgeedge with one O(1)W6 octahedra, edges with two equivalent O(4)Zn2W2 tetrahedra, and edges with two equivalent O(3)ZnW4 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 16-73°. In the fourth O site, O(4) is bonded to two equivalent W(2) and two equivalent Zn(1) atoms to form OZn2W2 tetrahedra that share corners with two equivalent O(1)W6 octahedra, corners with two equivalent O(4)Zn2W2 tetrahedra, and edges with four equivalent O(3)ZnW4 trigonal bipyramids. The corner-sharing octahedral tilt angles are 5°. is represented by the CIF card [CIF]
data_Zn(W2O3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.680
_cell_length_b   5.680
_cell_length_c   16.542
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   146.680
_symmetry_Int_Tables_number   1
_cell_volume   293.119
_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
  Zn  Zn0  1  0.308  0.692  0.750  1.0
  Zn  Zn1  1  0.692  0.308  0.250  1.0
  W  W2  1  0.138  0.862  0.050  1.0
  W  W3  1  0.614  0.386  0.633  1.0
  W  W4  1  0.862  0.138  0.950  1.0
  W  W5  1  0.386  0.614  0.367  1.0
  W  W6  1  0.138  0.862  0.450  1.0
  W  W7  1  0.862  0.138  0.550  1.0
  W  W8  1  0.386  0.614  0.133  1.0
  W  W9  1  0.614  0.386  0.867  1.0
  O  O10  1  0.500  0.500  0.500  1.0
  O  O11  1  0.500  0.500  0.000  1.0
  O  O12  1  0.992  0.008  0.856  1.0
  O  O13  1  0.008  0.992  0.144  1.0
  O  O14  1  0.008  0.992  0.356  1.0
  O  O15  1  0.992  0.008  0.644  1.0
  O  O16  1  0.268  0.732  0.876  1.0
  O  O17  1  0.732  0.268  0.124  1.0
  O  O18  1  0.732  0.268  0.376  1.0
  O  O19  1  0.268  0.732  0.624  1.0
  O  O20  1  0.693  0.307  0.750  1.0
  O  O21  1  0.307  0.693  0.250  1.0
[/CIF]
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