The crystal structure described by Na3(W2O3)2 crystallizes in the orthorhombic Imm2 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(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. W(1) is bonded in a T-shaped geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Na(2), one Na(3), and two equivalent W(1) atoms to form a mixture of corner and edge-sharing ONa3W2 square pyramids. In the second O site, O(2) is bonded to one Na(1), one Na(2), one Na(3), and two equivalent W(1) atoms to form a mixture of distorted face, corner, and edge-sharing ONa3W2 square pyramids. In the third O site, O(3) is bonded to one Na(1), one Na(2), one Na(3), and two equivalent W(1) atoms to form a mixture of face, corner, and edge-sharing ONa3W2 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3(W2O3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.479
_cell_length_b   6.479
_cell_length_c   6.479
_cell_angle_alpha   118.979
_cell_angle_beta   106.663
_cell_angle_gamma   103.224
_symmetry_Int_Tables_number   1
_cell_volume   204.833
_cell_formula_units_Z   1
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  0.500  0.994  0.494  1.0
  Na  Na1  1  0.000  0.483  0.483  1.0
  Na  Na2  1  0.500  0.530  0.030  1.0
  W  W3  1  0.989  0.510  0.999  1.0
  W  W4  1  0.511  0.510  0.520  1.0
  W  W5  1  0.011  0.009  0.520  1.0
  W  W6  1  0.489  0.009  0.999  1.0
  O  O7  1  0.708  0.267  0.975  1.0
  O  O8  1  0.292  0.267  0.560  1.0
  O  O9  1  0.219  0.750  0.969  1.0
  O  O10  1  0.258  0.517  0.259  1.0
  O  O11  1  0.742  0.001  0.259  1.0
  O  O12  1  0.781  0.750  0.531  1.0
[/CIF]
.
The crystal structure described by Na3(W2O3)2 crystallizes in the orthorhombic Imm2 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(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. W(1) is bonded in a T-shaped geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Na(2), one Na(3), and two equivalent W(1) atoms to form a mixture of corner and edge-sharing ONa3W2 square pyramids. In the second O site, O(2) is bonded to one Na(1), one Na(2), one Na(3), and two equivalent W(1) atoms to form a mixture of distorted face, corner, and edge-sharing ONa3W2 square pyramids. In the third O site, O(3) is bonded to one Na(1), one Na(2), one Na(3), and two equivalent W(1) atoms to form a mixture of face, corner, and edge-sharing ONa3W2 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3(W2O3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.479
_cell_length_b   6.479
_cell_length_c   6.479
_cell_angle_alpha   118.979
_cell_angle_beta   106.663
_cell_angle_gamma   103.224
_symmetry_Int_Tables_number   1
_cell_volume   204.833
_cell_formula_units_Z   1
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  0.500  0.994  0.494  1.0
  Na  Na1  1  0.000  0.483  0.483  1.0
  Na  Na2  1  0.500  0.530  0.030  1.0
  W  W3  1  0.989  0.510  0.999  1.0
  W  W4  1  0.511  0.510  0.520  1.0
  W  W5  1  0.011  0.009  0.520  1.0
  W  W6  1  0.489  0.009  0.999  1.0
  O  O7  1  0.708  0.267  0.975  1.0
  O  O8  1  0.292  0.267  0.560  1.0
  O  O9  1  0.219  0.750  0.969  1.0
  O  O10  1  0.258  0.517  0.259  1.0
  O  O11  1  0.742  0.001  0.259  1.0
  O  O12  1  0.781  0.750  0.531  1.0
[/CIF]
.