The structure described by Na5VO5 crystallizes in the orthorhombic Pbcm space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form distorted NaO4 trigonal pyramids that share corners with six equivalent Na(2)O5 square pyramids, corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent Na(1)O4 trigonal pyramids, and edges with two equivalent Na(4)O5 trigonal bipyramids. In the second Na site, Na(2) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form distorted NaO5 square pyramids that share corners with two equivalent Na(2)O5 square pyramids, corners with two equivalent V(1)O4 tetrahedra,  a cornercorner with one Na(4)O5 trigonal bipyramid, corners with three equivalent Na(1)O4 trigonal pyramids, edges with three equivalent Na(2)O5 square pyramids,  an edgeedge with one V(1)O4 tetrahedra, and edges with two equivalent Na(4)O5 trigonal bipyramids. In the third Na site, Na(3) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. In the fourth Na site, Na(4) is bonded to one O(1), one O(3), one O(4), and two equivalent O(2) atoms to form NaO5 trigonal bipyramids that share corners with two equivalent Na(2)O5 square pyramids, corners with four equivalent V(1)O4 tetrahedra, edges with four equivalent Na(2)O5 square pyramids, and edges with two equivalent Na(1)O4 trigonal pyramids. V(1) is bonded to one O(3), one O(4), and two equivalent O(2) atoms to form VO4 tetrahedra that share corners with four equivalent Na(2)O5 square pyramids, corners with four equivalent Na(4)O5 trigonal bipyramids, corners with two equivalent Na(1)O4 trigonal pyramids, and edges with two equivalent Na(2)O5 square pyramids. There are four inequivalent O sites. In the first O site, O(3) is bonded to one Na(4), four equivalent Na(2), and one V(1) atom to form distorted ONa5V octahedra that share corners with three equivalent O(1)Na6 octahedra,  an edgeedge with one O(1)Na6 octahedra, edges with two equivalent O(3)Na5V octahedra, and edges with four equivalent O(2)Na5V octahedra. The corner-sharing octahedral tilt angles range from 2-15°. In the second O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Na(4), two equivalent Na(2), and one V(1) atom. In the third O site, O(1) is bonded to one Na(3), one Na(4), two equivalent Na(1), and two equivalent Na(2) atoms to form ONa6 octahedra that share corners with two equivalent O(1)Na6 octahedra, corners with three equivalent O(3)Na5V octahedra, corners with four equivalent O(2)Na5V octahedra,  an edgeedge with one O(3)Na5V octahedra, and edges with four equivalent O(2)Na5V octahedra. The corner-sharing octahedral tilt angles range from 2-54°. In the fourth O site, O(2) is bonded to one Na(1), one Na(2), one Na(4), two equivalent Na(3), and one V(1) atom to form distorted ONa5V octahedra that share corners with two equivalent O(2)Na5V octahedra, corners with two equivalent O(1)Na6 octahedra, edges with two equivalent O(2)Na5V octahedra, edges with two equivalent O(3)Na5V octahedra, edges with two equivalent O(1)Na6 octahedra, and  a faceface with one O(2)Na5V octahedra. The corner-sharing octahedral tilt angles range from 49-54°. is represented by the CIF card [CIF]
data_Na5VO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.859
_cell_length_b   6.674
_cell_length_c   16.295
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   637.246
_cell_formula_units_Z   4
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  0.511  0.000  0.250  1.0
  Na  Na1  1  0.489  0.500  0.750  1.0
  Na  Na2  1  0.511  0.500  0.250  1.0
  Na  Na3  1  0.489  0.000  0.750  1.0
  Na  Na4  1  0.210  0.986  0.083  1.0
  Na  Na5  1  0.210  0.014  0.417  1.0
  Na  Na6  1  0.790  0.486  0.917  1.0
  Na  Na7  1  0.790  0.514  0.583  1.0
  Na  Na8  1  0.790  0.014  0.917  1.0
  Na  Na9  1  0.790  0.986  0.583  1.0
  Na  Na10  1  0.210  0.514  0.083  1.0
  Na  Na11  1  0.210  0.486  0.417  1.0
  Na  Na12  1  1.000  0.750  0.231  1.0
  Na  Na13  1  1.000  0.250  0.269  1.0
  Na  Na14  1  0.000  0.250  0.769  1.0
  Na  Na15  1  0.000  0.750  0.731  1.0
  Na  Na16  1  0.665  0.750  0.085  1.0
  Na  Na17  1  0.665  0.250  0.415  1.0
  Na  Na18  1  0.335  0.250  0.915  1.0
  Na  Na19  1  0.335  0.750  0.585  1.0
  V  V20  1  0.223  0.250  0.593  1.0
  V  V21  1  0.223  0.750  0.907  1.0
  V  V22  1  0.777  0.750  0.407  1.0
  V  V23  1  0.777  0.250  0.093  1.0
  O  O24  1  0.650  0.250  0.827  1.0
  O  O25  1  0.650  0.750  0.673  1.0
  O  O26  1  0.350  0.250  0.327  1.0
  O  O27  1  0.350  0.750  0.173  1.0
  O  O28  1  0.836  0.462  0.154  1.0
  O  O29  1  0.836  0.538  0.346  1.0
  O  O30  1  0.164  0.962  0.846  1.0
  O  O31  1  0.164  0.038  0.654  1.0
  O  O32  1  0.164  0.538  0.846  1.0
  O  O33  1  0.164  0.462  0.654  1.0
  O  O34  1  0.836  0.038  0.154  1.0
  O  O35  1  0.836  0.962  0.346  1.0
  O  O36  1  0.970  0.250  0.012  1.0
  O  O37  1  0.970  0.750  0.488  1.0
  O  O38  1  0.030  0.750  0.988  1.0
  O  O39  1  0.030  0.250  0.512  1.0
  O  O40  1  0.498  0.250  0.056  1.0
  O  O41  1  0.498  0.750  0.444  1.0
  O  O42  1  0.502  0.750  0.944  1.0
  O  O43  1  0.502  0.250  0.556  1.0
[/CIF]
.
The structure described by Na5VO5 crystallizes in the orthorhombic Pbcm space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form distorted NaO4 trigonal pyramids that share corners with six equivalent Na(2)O5 square pyramids, corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent Na(1)O4 trigonal pyramids, and edges with two equivalent Na(4)O5 trigonal bipyramids. In the second Na site, Na(2) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form distorted NaO5 square pyramids that share corners with two equivalent Na(2)O5 square pyramids, corners with two equivalent V(1)O4 tetrahedra,  a cornercorner with one Na(4)O5 trigonal bipyramid, corners with three equivalent Na(1)O4 trigonal pyramids, edges with three equivalent Na(2)O5 square pyramids,  an edgeedge with one V(1)O4 tetrahedra, and edges with two equivalent Na(4)O5 trigonal bipyramids. In the third Na site, Na(3) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. In the fourth Na site, Na(4) is bonded to one O(1), one O(3), one O(4), and two equivalent O(2) atoms to form NaO5 trigonal bipyramids that share corners with two equivalent Na(2)O5 square pyramids, corners with four equivalent V(1)O4 tetrahedra, edges with four equivalent Na(2)O5 square pyramids, and edges with two equivalent Na(1)O4 trigonal pyramids. V(1) is bonded to one O(3), one O(4), and two equivalent O(2) atoms to form VO4 tetrahedra that share corners with four equivalent Na(2)O5 square pyramids, corners with four equivalent Na(4)O5 trigonal bipyramids, corners with two equivalent Na(1)O4 trigonal pyramids, and edges with two equivalent Na(2)O5 square pyramids. There are four inequivalent O sites. In the first O site, O(3) is bonded to one Na(4), four equivalent Na(2), and one V(1) atom to form distorted ONa5V octahedra that share corners with three equivalent O(1)Na6 octahedra,  an edgeedge with one O(1)Na6 octahedra, edges with two equivalent O(3)Na5V octahedra, and edges with four equivalent O(2)Na5V octahedra. The corner-sharing octahedral tilt angles range from 2-15°. In the second O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Na(4), two equivalent Na(2), and one V(1) atom. In the third O site, O(1) is bonded to one Na(3), one Na(4), two equivalent Na(1), and two equivalent Na(2) atoms to form ONa6 octahedra that share corners with two equivalent O(1)Na6 octahedra, corners with three equivalent O(3)Na5V octahedra, corners with four equivalent O(2)Na5V octahedra,  an edgeedge with one O(3)Na5V octahedra, and edges with four equivalent O(2)Na5V octahedra. The corner-sharing octahedral tilt angles range from 2-54°. In the fourth O site, O(2) is bonded to one Na(1), one Na(2), one Na(4), two equivalent Na(3), and one V(1) atom to form distorted ONa5V octahedra that share corners with two equivalent O(2)Na5V octahedra, corners with two equivalent O(1)Na6 octahedra, edges with two equivalent O(2)Na5V octahedra, edges with two equivalent O(3)Na5V octahedra, edges with two equivalent O(1)Na6 octahedra, and  a faceface with one O(2)Na5V octahedra. The corner-sharing octahedral tilt angles range from 49-54°. is represented by the CIF card [CIF]
data_Na5VO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.859
_cell_length_b   6.674
_cell_length_c   16.295
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   637.246
_cell_formula_units_Z   4
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  0.511  0.000  0.250  1.0
  Na  Na1  1  0.489  0.500  0.750  1.0
  Na  Na2  1  0.511  0.500  0.250  1.0
  Na  Na3  1  0.489  0.000  0.750  1.0
  Na  Na4  1  0.210  0.986  0.083  1.0
  Na  Na5  1  0.210  0.014  0.417  1.0
  Na  Na6  1  0.790  0.486  0.917  1.0
  Na  Na7  1  0.790  0.514  0.583  1.0
  Na  Na8  1  0.790  0.014  0.917  1.0
  Na  Na9  1  0.790  0.986  0.583  1.0
  Na  Na10  1  0.210  0.514  0.083  1.0
  Na  Na11  1  0.210  0.486  0.417  1.0
  Na  Na12  1  1.000  0.750  0.231  1.0
  Na  Na13  1  1.000  0.250  0.269  1.0
  Na  Na14  1  0.000  0.250  0.769  1.0
  Na  Na15  1  0.000  0.750  0.731  1.0
  Na  Na16  1  0.665  0.750  0.085  1.0
  Na  Na17  1  0.665  0.250  0.415  1.0
  Na  Na18  1  0.335  0.250  0.915  1.0
  Na  Na19  1  0.335  0.750  0.585  1.0
  V  V20  1  0.223  0.250  0.593  1.0
  V  V21  1  0.223  0.750  0.907  1.0
  V  V22  1  0.777  0.750  0.407  1.0
  V  V23  1  0.777  0.250  0.093  1.0
  O  O24  1  0.650  0.250  0.827  1.0
  O  O25  1  0.650  0.750  0.673  1.0
  O  O26  1  0.350  0.250  0.327  1.0
  O  O27  1  0.350  0.750  0.173  1.0
  O  O28  1  0.836  0.462  0.154  1.0
  O  O29  1  0.836  0.538  0.346  1.0
  O  O30  1  0.164  0.962  0.846  1.0
  O  O31  1  0.164  0.038  0.654  1.0
  O  O32  1  0.164  0.538  0.846  1.0
  O  O33  1  0.164  0.462  0.654  1.0
  O  O34  1  0.836  0.038  0.154  1.0
  O  O35  1  0.836  0.962  0.346  1.0
  O  O36  1  0.970  0.250  0.012  1.0
  O  O37  1  0.970  0.750  0.488  1.0
  O  O38  1  0.030  0.750  0.988  1.0
  O  O39  1  0.030  0.250  0.512  1.0
  O  O40  1  0.498  0.250  0.056  1.0
  O  O41  1  0.498  0.750  0.444  1.0
  O  O42  1  0.502  0.750  0.944  1.0
  O  O43  1  0.502  0.250  0.556  1.0
[/CIF]
.