The material described by Na3Zn2(WO4)3 crystallizes in the monoclinic C2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a distorted hexagonal planar geometry to two equivalent O(4) and four equivalent O(3) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to two equivalent O(5) and four equivalent O(6) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded in a distorted tetrahedral geometry to two equivalent O(4) and two equivalent O(5) atoms. In the second W site, W(2) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(6) atom. Zn(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one W(2) and one Zn(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(1), one W(2), and one Zn(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), two equivalent Na(2), and one W(2) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Na(2), one W(1), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Na(1), one Na(3), one W(1), and one Zn(1) atom. In the sixth O site, O(6) is bonded to two equivalent Na(3), one W(2), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing ONa2ZnW tetrahedra. is represented by the CIF file [CIF]
data_Na3Zn2(WO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.322
_cell_length_b   9.322
_cell_length_c   7.389
_cell_angle_alpha   74.471
_cell_angle_beta   74.471
_cell_angle_gamma   98.397
_symmetry_Int_Tables_number   1
_cell_volume   579.432
_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
  Na  Na0  1  0.235  0.765  0.250  1.0
  Na  Na1  1  0.765  0.235  0.750  1.0
  Na  Na2  1  0.000  0.000  0.000  1.0
  Na  Na3  1  0.000  0.000  0.500  1.0
  Na  Na4  1  0.524  0.476  0.250  1.0
  Na  Na5  1  0.476  0.524  0.750  1.0
  Zn  Zn6  1  0.558  0.864  0.370  1.0
  Zn  Zn7  1  0.442  0.136  0.630  1.0
  Zn  Zn8  1  0.136  0.442  0.130  1.0
  Zn  Zn9  1  0.864  0.558  0.870  1.0
  W  W10  1  0.776  0.224  0.250  1.0
  W  W11  1  0.224  0.776  0.750  1.0
  W  W12  1  0.381  0.168  0.121  1.0
  W  W13  1  0.619  0.832  0.879  1.0
  W  W14  1  0.832  0.619  0.379  1.0
  W  W15  1  0.168  0.381  0.621  1.0
  O  O16  1  0.463  0.117  0.322  1.0
  O  O17  1  0.537  0.883  0.678  1.0
  O  O18  1  0.883  0.537  0.178  1.0
  O  O19  1  0.117  0.463  0.822  1.0
  O  O20  1  0.504  0.840  0.116  1.0
  O  O21  1  0.496  0.160  0.884  1.0
  O  O22  1  0.160  0.496  0.384  1.0
  O  O23  1  0.840  0.504  0.616  1.0
  O  O24  1  0.200  0.037  0.196  1.0
  O  O25  1  0.800  0.963  0.804  1.0
  O  O26  1  0.963  0.800  0.304  1.0
  O  O27  1  0.037  0.200  0.696  1.0
  O  O28  1  0.752  0.023  0.233  1.0
  O  O29  1  0.248  0.977  0.767  1.0
  O  O30  1  0.977  0.248  0.267  1.0
  O  O31  1  0.023  0.752  0.733  1.0
  O  O32  1  0.657  0.259  0.480  1.0
  O  O33  1  0.343  0.741  0.520  1.0
  O  O34  1  0.741  0.343  0.020  1.0
  O  O35  1  0.259  0.657  0.980  1.0
  O  O36  1  0.639  0.653  0.413  1.0
  O  O37  1  0.361  0.347  0.587  1.0
  O  O38  1  0.347  0.361  0.087  1.0
  O  O39  1  0.653  0.639  0.913  1.0
[/CIF]
.
The material described by Na3Zn2(WO4)3 crystallizes in the monoclinic C2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a distorted hexagonal planar geometry to two equivalent O(4) and four equivalent O(3) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to two equivalent O(5) and four equivalent O(6) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded in a distorted tetrahedral geometry to two equivalent O(4) and two equivalent O(5) atoms. In the second W site, W(2) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(6) atom. Zn(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one W(2) and one Zn(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(1), one W(2), and one Zn(1) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), two equivalent Na(2), and one W(2) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Na(2), one W(1), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Na(1), one Na(3), one W(1), and one Zn(1) atom. In the sixth O site, O(6) is bonded to two equivalent Na(3), one W(2), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing ONa2ZnW tetrahedra. is represented by the CIF file [CIF]
data_Na3Zn2(WO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.322
_cell_length_b   9.322
_cell_length_c   7.389
_cell_angle_alpha   74.471
_cell_angle_beta   74.471
_cell_angle_gamma   98.397
_symmetry_Int_Tables_number   1
_cell_volume   579.432
_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
  Na  Na0  1  0.235  0.765  0.250  1.0
  Na  Na1  1  0.765  0.235  0.750  1.0
  Na  Na2  1  0.000  0.000  0.000  1.0
  Na  Na3  1  0.000  0.000  0.500  1.0
  Na  Na4  1  0.524  0.476  0.250  1.0
  Na  Na5  1  0.476  0.524  0.750  1.0
  Zn  Zn6  1  0.558  0.864  0.370  1.0
  Zn  Zn7  1  0.442  0.136  0.630  1.0
  Zn  Zn8  1  0.136  0.442  0.130  1.0
  Zn  Zn9  1  0.864  0.558  0.870  1.0
  W  W10  1  0.776  0.224  0.250  1.0
  W  W11  1  0.224  0.776  0.750  1.0
  W  W12  1  0.381  0.168  0.121  1.0
  W  W13  1  0.619  0.832  0.879  1.0
  W  W14  1  0.832  0.619  0.379  1.0
  W  W15  1  0.168  0.381  0.621  1.0
  O  O16  1  0.463  0.117  0.322  1.0
  O  O17  1  0.537  0.883  0.678  1.0
  O  O18  1  0.883  0.537  0.178  1.0
  O  O19  1  0.117  0.463  0.822  1.0
  O  O20  1  0.504  0.840  0.116  1.0
  O  O21  1  0.496  0.160  0.884  1.0
  O  O22  1  0.160  0.496  0.384  1.0
  O  O23  1  0.840  0.504  0.616  1.0
  O  O24  1  0.200  0.037  0.196  1.0
  O  O25  1  0.800  0.963  0.804  1.0
  O  O26  1  0.963  0.800  0.304  1.0
  O  O27  1  0.037  0.200  0.696  1.0
  O  O28  1  0.752  0.023  0.233  1.0
  O  O29  1  0.248  0.977  0.767  1.0
  O  O30  1  0.977  0.248  0.267  1.0
  O  O31  1  0.023  0.752  0.733  1.0
  O  O32  1  0.657  0.259  0.480  1.0
  O  O33  1  0.343  0.741  0.520  1.0
  O  O34  1  0.741  0.343  0.020  1.0
  O  O35  1  0.259  0.657  0.980  1.0
  O  O36  1  0.639  0.653  0.413  1.0
  O  O37  1  0.361  0.347  0.587  1.0
  O  O38  1  0.347  0.361  0.087  1.0
  O  O39  1  0.653  0.639  0.913  1.0
[/CIF]
.