The crystal structure described by Na3(WO3)4 crystallizes in the cubic Im-3m space group. Na(1) is bonded to twelve equivalent O(1) atoms to form NaO12 cuboctahedra that share corners with eight equivalent Na(1)O12 cuboctahedra, faces with four equivalent Na(1)O12 cuboctahedra, and faces with eight equivalent W(1)O6 octahedra. W(1) is bonded to six equivalent O(1) atoms to form WO6 octahedra that share corners with six equivalent W(1)O6 octahedra and faces with six equivalent Na(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 2°. O(1) is bonded to three equivalent Na(1) and two equivalent W(1) atoms to form a mixture of distorted edge, face, and corner-sharing ONa3W2 square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3(WO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.825
_cell_length_b   6.825
_cell_length_c   6.825
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   244.704
_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  0.500  0.000  1.0
  Na  Na1  1  0.000  0.500  0.500  1.0
  Na  Na2  1  0.500  0.000  0.500  1.0
  W  W3  1  0.000  0.500  0.000  1.0
  W  W4  1  0.500  0.000  0.000  1.0
  W  W5  1  0.000  0.000  0.500  1.0
  W  W6  1  0.500  0.500  0.500  1.0
  O  O7  1  0.747  0.000  0.253  1.0
  O  O8  1  0.253  0.505  0.253  1.0
  O  O9  1  0.253  0.747  0.000  1.0
  O  O10  1  0.747  0.253  0.000  1.0
  O  O11  1  0.000  0.747  0.253  1.0
  O  O12  1  0.505  0.253  0.253  1.0
  O  O13  1  0.253  0.000  0.747  1.0
  O  O14  1  0.747  0.495  0.747  1.0
  O  O15  1  0.253  0.253  0.505  1.0
  O  O16  1  0.747  0.747  0.495  1.0
  O  O17  1  0.495  0.747  0.747  1.0
  O  O18  1  0.000  0.253  0.747  1.0
[/CIF]
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The crystal structure described by Na3(WO3)4 crystallizes in the cubic Im-3m space group. Na(1) is bonded to twelve equivalent O(1) atoms to form NaO12 cuboctahedra that share corners with eight equivalent Na(1)O12 cuboctahedra, faces with four equivalent Na(1)O12 cuboctahedra, and faces with eight equivalent W(1)O6 octahedra. W(1) is bonded to six equivalent O(1) atoms to form WO6 octahedra that share corners with six equivalent W(1)O6 octahedra and faces with six equivalent Na(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 2°. O(1) is bonded to three equivalent Na(1) and two equivalent W(1) atoms to form a mixture of distorted edge, face, and corner-sharing ONa3W2 square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3(WO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.825
_cell_length_b   6.825
_cell_length_c   6.825
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   244.704
_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  0.500  0.000  1.0
  Na  Na1  1  0.000  0.500  0.500  1.0
  Na  Na2  1  0.500  0.000  0.500  1.0
  W  W3  1  0.000  0.500  0.000  1.0
  W  W4  1  0.500  0.000  0.000  1.0
  W  W5  1  0.000  0.000  0.500  1.0
  W  W6  1  0.500  0.500  0.500  1.0
  O  O7  1  0.747  0.000  0.253  1.0
  O  O8  1  0.253  0.505  0.253  1.0
  O  O9  1  0.253  0.747  0.000  1.0
  O  O10  1  0.747  0.253  0.000  1.0
  O  O11  1  0.000  0.747  0.253  1.0
  O  O12  1  0.505  0.253  0.253  1.0
  O  O13  1  0.253  0.000  0.747  1.0
  O  O14  1  0.747  0.495  0.747  1.0
  O  O15  1  0.253  0.253  0.505  1.0
  O  O16  1  0.747  0.747  0.495  1.0
  O  O17  1  0.495  0.747  0.747  1.0
  O  O18  1  0.000  0.253  0.747  1.0
[/CIF]
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