The structure described by Na5WO5 crystallizes in the monoclinic C2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form distorted NaO5 square pyramids that share  a cornercorner with one Na(1)O5 square pyramid, corners with three equivalent Na(3)O5 square pyramids, corners with four equivalent Na(2)O5 square pyramids,  a cornercorner with one W(1)O5 trigonal bipyramid,  an edgeedge with one Na(3)O5 square pyramid, edges with two equivalent Na(1)O5 square pyramids, edges with three equivalent Na(2)O5 square pyramids, and edges with two equivalent W(1)O5 trigonal bipyramids. In the second Na site, Na(2) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form NaO5 square pyramids that share  a cornercorner with one Na(2)O5 square pyramid,  a cornercorner with one Na(3)O5 square pyramid, corners with four equivalent Na(1)O5 square pyramids, corners with three equivalent W(1)O5 trigonal bipyramids, edges with two equivalent Na(2)O5 square pyramids, edges with two equivalent Na(3)O5 square pyramids, edges with three equivalent Na(1)O5 square pyramids, and  an edgeedge with one W(1)O5 trigonal bipyramid. In the third Na site, Na(3) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form NaO5 square pyramids that share corners with two equivalent Na(2)O5 square pyramids, corners with six equivalent Na(1)O5 square pyramids,  a cornercorner with one W(1)O5 trigonal bipyramid, edges with two equivalent Na(1)O5 square pyramids, edges with four equivalent Na(2)O5 square pyramids, and edges with two equivalent W(1)O5 trigonal bipyramids. W(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form WO5 trigonal bipyramids that share  a cornercorner with one Na(3)O5 square pyramid, corners with two equivalent Na(1)O5 square pyramids, corners with six equivalent Na(2)O5 square pyramids, edges with two equivalent Na(2)O5 square pyramids, edges with two equivalent Na(3)O5 square pyramids, and edges with four equivalent Na(1)O5 square pyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Na(3), two equivalent Na(1), two equivalent Na(2), and one W(1) atom to form a mixture of distorted edge and corner-sharing ONa5W octahedra. The corner-sharing octahedral tilt angles range from 6-22°. In the second O site, O(2) is bonded to one Na(3), two equivalent Na(1), two equivalent Na(2), and one W(1) atom to form a mixture of edge and corner-sharing ONa5W octahedra. The corner-sharing octahedral tilt angles range from 8-22°. In the third O site, O(3) is bonded to one Na(3), two equivalent Na(1), two equivalent Na(2), and one W(1) atom to form a mixture of distorted edge and corner-sharing ONa5W octahedra. The corner-sharing octahedral tilt angles range from 11-17°. is represented by the CIF card [CIF]
data_Na5WO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.874
_cell_length_b   5.874
_cell_length_c   10.311
_cell_angle_alpha   80.247
_cell_angle_beta   80.247
_cell_angle_gamma   113.459
_symmetry_Int_Tables_number   1
_cell_volume   310.417
_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  0.723  0.951  0.582  1.0
  Na  Na1  1  0.523  0.779  0.935  1.0
  Na  Na2  1  0.597  0.403  0.750  1.0
  Na  Na3  1  0.951  0.723  0.082  1.0
  Na  Na4  1  0.779  0.523  0.435  1.0
  Na  Na5  1  0.221  0.477  0.565  1.0
  Na  Na6  1  0.049  0.277  0.918  1.0
  Na  Na7  1  0.403  0.597  0.250  1.0
  Na  Na8  1  0.477  0.221  0.065  1.0
  Na  Na9  1  0.277  0.049  0.418  1.0
  W  W10  1  0.144  0.856  0.750  1.0
  W  W11  1  0.856  0.144  0.250  1.0
  O  O12  1  0.832  0.614  0.888  1.0
  O  O13  1  0.984  0.724  0.610  1.0
  O  O14  1  0.614  0.832  0.388  1.0
  O  O15  1  0.724  0.984  0.110  1.0
  O  O16  1  0.338  0.662  0.750  1.0
  O  O17  1  0.662  0.338  0.250  1.0
  O  O18  1  0.276  0.016  0.890  1.0
  O  O19  1  0.386  0.168  0.612  1.0
  O  O20  1  0.016  0.276  0.390  1.0
  O  O21  1  0.168  0.386  0.112  1.0
[/CIF]
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The structure described by Na5WO5 crystallizes in the monoclinic C2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form distorted NaO5 square pyramids that share  a cornercorner with one Na(1)O5 square pyramid, corners with three equivalent Na(3)O5 square pyramids, corners with four equivalent Na(2)O5 square pyramids,  a cornercorner with one W(1)O5 trigonal bipyramid,  an edgeedge with one Na(3)O5 square pyramid, edges with two equivalent Na(1)O5 square pyramids, edges with three equivalent Na(2)O5 square pyramids, and edges with two equivalent W(1)O5 trigonal bipyramids. In the second Na site, Na(2) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form NaO5 square pyramids that share  a cornercorner with one Na(2)O5 square pyramid,  a cornercorner with one Na(3)O5 square pyramid, corners with four equivalent Na(1)O5 square pyramids, corners with three equivalent W(1)O5 trigonal bipyramids, edges with two equivalent Na(2)O5 square pyramids, edges with two equivalent Na(3)O5 square pyramids, edges with three equivalent Na(1)O5 square pyramids, and  an edgeedge with one W(1)O5 trigonal bipyramid. In the third Na site, Na(3) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form NaO5 square pyramids that share corners with two equivalent Na(2)O5 square pyramids, corners with six equivalent Na(1)O5 square pyramids,  a cornercorner with one W(1)O5 trigonal bipyramid, edges with two equivalent Na(1)O5 square pyramids, edges with four equivalent Na(2)O5 square pyramids, and edges with two equivalent W(1)O5 trigonal bipyramids. W(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form WO5 trigonal bipyramids that share  a cornercorner with one Na(3)O5 square pyramid, corners with two equivalent Na(1)O5 square pyramids, corners with six equivalent Na(2)O5 square pyramids, edges with two equivalent Na(2)O5 square pyramids, edges with two equivalent Na(3)O5 square pyramids, and edges with four equivalent Na(1)O5 square pyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Na(3), two equivalent Na(1), two equivalent Na(2), and one W(1) atom to form a mixture of distorted edge and corner-sharing ONa5W octahedra. The corner-sharing octahedral tilt angles range from 6-22°. In the second O site, O(2) is bonded to one Na(3), two equivalent Na(1), two equivalent Na(2), and one W(1) atom to form a mixture of edge and corner-sharing ONa5W octahedra. The corner-sharing octahedral tilt angles range from 8-22°. In the third O site, O(3) is bonded to one Na(3), two equivalent Na(1), two equivalent Na(2), and one W(1) atom to form a mixture of distorted edge and corner-sharing ONa5W octahedra. The corner-sharing octahedral tilt angles range from 11-17°. is represented by the CIF card [CIF]
data_Na5WO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.874
_cell_length_b   5.874
_cell_length_c   10.311
_cell_angle_alpha   80.247
_cell_angle_beta   80.247
_cell_angle_gamma   113.459
_symmetry_Int_Tables_number   1
_cell_volume   310.417
_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  0.723  0.951  0.582  1.0
  Na  Na1  1  0.523  0.779  0.935  1.0
  Na  Na2  1  0.597  0.403  0.750  1.0
  Na  Na3  1  0.951  0.723  0.082  1.0
  Na  Na4  1  0.779  0.523  0.435  1.0
  Na  Na5  1  0.221  0.477  0.565  1.0
  Na  Na6  1  0.049  0.277  0.918  1.0
  Na  Na7  1  0.403  0.597  0.250  1.0
  Na  Na8  1  0.477  0.221  0.065  1.0
  Na  Na9  1  0.277  0.049  0.418  1.0
  W  W10  1  0.144  0.856  0.750  1.0
  W  W11  1  0.856  0.144  0.250  1.0
  O  O12  1  0.832  0.614  0.888  1.0
  O  O13  1  0.984  0.724  0.610  1.0
  O  O14  1  0.614  0.832  0.388  1.0
  O  O15  1  0.724  0.984  0.110  1.0
  O  O16  1  0.338  0.662  0.750  1.0
  O  O17  1  0.662  0.338  0.250  1.0
  O  O18  1  0.276  0.016  0.890  1.0
  O  O19  1  0.386  0.168  0.612  1.0
  O  O20  1  0.016  0.276  0.390  1.0
  O  O21  1  0.168  0.386  0.112  1.0
[/CIF]
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