The material described by W2Zn3O7 crystallizes in the orthorhombic Cmc2_1 space group. W(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form WO6 octahedra that share corners with five equivalent W(1)O6 octahedra, corners with four equivalent Zn(1)O4 tetrahedra, and corners with five equivalent Zn(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-48°. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form ZnO4 tetrahedra that share corners with eight equivalent W(1)O6 octahedra and corners with two equivalent Zn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 66-81°. In the second Zn site, Zn(2) is bonded to one O(2) and three equivalent O(1) atoms to form distorted ZnO4 tetrahedra that share corners with five equivalent W(1)O6 octahedra and corners with six equivalent Zn(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-80°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one W(1) and three equivalent Zn(2) atoms to form distorted OZn3W tetrahedra that share  a cornercorner with one O(4)Zn2W2 tetrahedra and corners with six equivalent O(1)Zn3W tetrahedra. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent W(1) and one Zn(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent W(1) and one Zn(1) atom. In the fourth O site, O(4) is bonded to two equivalent W(1) and two equivalent Zn(1) atoms to form distorted OZn2W2 tetrahedra that share corners with two equivalent O(4)Zn2W2 tetrahedra and corners with two equivalent O(1)Zn3W tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn3W2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.832
_cell_length_b   9.832
_cell_length_c   5.389
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   147.846
_symmetry_Int_Tables_number   1
_cell_volume   277.272
_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  0.740  0.740  0.260  1.0
  Zn  Zn1  1  0.260  0.260  0.760  1.0
  Zn  Zn2  1  0.985  0.578  0.218  1.0
  Zn  Zn3  1  0.015  0.422  0.718  1.0
  Zn  Zn4  1  0.578  0.985  0.218  1.0
  Zn  Zn5  1  0.422  0.015  0.718  1.0
  W  W6  1  0.149  0.356  0.243  1.0
  W  W7  1  0.851  0.644  0.743  1.0
  W  W8  1  0.644  0.851  0.743  1.0
  W  W9  1  0.356  0.149  0.243  1.0
  O  O10  1  0.340  0.929  0.343  1.0
  O  O11  1  0.660  0.071  0.843  1.0
  O  O12  1  0.071  0.660  0.843  1.0
  O  O13  1  0.929  0.340  0.343  1.0
  O  O14  1  0.555  0.290  0.906  1.0
  O  O15  1  0.445  0.710  0.406  1.0
  O  O16  1  0.710  0.445  0.406  1.0
  O  O17  1  0.290  0.555  0.906  1.0
  O  O18  1  0.001  0.848  0.081  1.0
  O  O19  1  0.999  0.152  0.581  1.0
  O  O20  1  0.376  0.376  0.137  1.0
  O  O21  1  0.624  0.624  0.637  1.0
  O  O22  1  0.848  0.001  0.081  1.0
  O  O23  1  0.152  0.999  0.581  1.0
[/CIF]
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The material described by W2Zn3O7 crystallizes in the orthorhombic Cmc2_1 space group. W(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form WO6 octahedra that share corners with five equivalent W(1)O6 octahedra, corners with four equivalent Zn(1)O4 tetrahedra, and corners with five equivalent Zn(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-48°. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form ZnO4 tetrahedra that share corners with eight equivalent W(1)O6 octahedra and corners with two equivalent Zn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 66-81°. In the second Zn site, Zn(2) is bonded to one O(2) and three equivalent O(1) atoms to form distorted ZnO4 tetrahedra that share corners with five equivalent W(1)O6 octahedra and corners with six equivalent Zn(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-80°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one W(1) and three equivalent Zn(2) atoms to form distorted OZn3W tetrahedra that share  a cornercorner with one O(4)Zn2W2 tetrahedra and corners with six equivalent O(1)Zn3W tetrahedra. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent W(1) and one Zn(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent W(1) and one Zn(1) atom. In the fourth O site, O(4) is bonded to two equivalent W(1) and two equivalent Zn(1) atoms to form distorted OZn2W2 tetrahedra that share corners with two equivalent O(4)Zn2W2 tetrahedra and corners with two equivalent O(1)Zn3W tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn3W2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.832
_cell_length_b   9.832
_cell_length_c   5.389
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   147.846
_symmetry_Int_Tables_number   1
_cell_volume   277.272
_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  0.740  0.740  0.260  1.0
  Zn  Zn1  1  0.260  0.260  0.760  1.0
  Zn  Zn2  1  0.985  0.578  0.218  1.0
  Zn  Zn3  1  0.015  0.422  0.718  1.0
  Zn  Zn4  1  0.578  0.985  0.218  1.0
  Zn  Zn5  1  0.422  0.015  0.718  1.0
  W  W6  1  0.149  0.356  0.243  1.0
  W  W7  1  0.851  0.644  0.743  1.0
  W  W8  1  0.644  0.851  0.743  1.0
  W  W9  1  0.356  0.149  0.243  1.0
  O  O10  1  0.340  0.929  0.343  1.0
  O  O11  1  0.660  0.071  0.843  1.0
  O  O12  1  0.071  0.660  0.843  1.0
  O  O13  1  0.929  0.340  0.343  1.0
  O  O14  1  0.555  0.290  0.906  1.0
  O  O15  1  0.445  0.710  0.406  1.0
  O  O16  1  0.710  0.445  0.406  1.0
  O  O17  1  0.290  0.555  0.906  1.0
  O  O18  1  0.001  0.848  0.081  1.0
  O  O19  1  0.999  0.152  0.581  1.0
  O  O20  1  0.376  0.376  0.137  1.0
  O  O21  1  0.624  0.624  0.637  1.0
  O  O22  1  0.848  0.001  0.081  1.0
  O  O23  1  0.152  0.999  0.581  1.0
[/CIF]
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