The material structure described by Na5P3O10 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 one O(4), one O(5), 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 one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms. In the third Na site, Na(3) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form distorted NaO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and edges with two equivalent P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  an edgeedge with one Na(3)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. In the second P site, P(2) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form corner-sharing PO4 tetrahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Na(3), two equivalent Na(2), and one P(1) atom to form distorted corner-sharing ONa3P tetrahedra. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), two equivalent Na(1), and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Na(2), two equivalent Na(1), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(2), one P(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(2), one Na(3), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na5P3O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.356
_cell_length_b   8.356
_cell_length_c   11.123
_cell_angle_alpha   87.280
_cell_angle_beta   87.280
_cell_angle_gamma   36.078
_symmetry_Int_Tables_number   1
_cell_volume   456.758
_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  0.301  0.778  0.039  1.0
  Na  Na1  1  0.778  0.301  0.539  1.0
  Na  Na2  1  0.699  0.222  0.961  1.0
  Na  Na3  1  0.108  0.575  0.208  1.0
  Na  Na4  1  0.425  0.892  0.292  1.0
  Na  Na5  1  0.892  0.425  0.792  1.0
  Na  Na6  1  0.000  0.500  0.500  1.0
  Na  Na7  1  0.500  0.000  0.000  1.0
  Na  Na8  1  0.575  0.108  0.708  1.0
  Na  Na9  1  0.222  0.699  0.461  1.0
  P  P10  1  0.048  0.657  0.901  1.0
  P  P11  1  0.343  0.952  0.599  1.0
  P  P12  1  0.952  0.343  0.099  1.0
  P  P13  1  0.657  0.048  0.401  1.0
  P  P14  1  0.302  0.698  0.750  1.0
  P  P15  1  0.698  0.302  0.250  1.0
  O  O16  1  0.727  0.832  0.351  1.0
  O  O17  1  0.968  0.792  0.020  1.0
  O  O18  1  0.208  0.032  0.480  1.0
  O  O19  1  0.032  0.208  0.980  1.0
  O  O20  1  0.792  0.968  0.520  1.0
  O  O21  1  0.832  0.727  0.851  1.0
  O  O22  1  0.508  0.413  0.152  1.0
  O  O23  1  0.587  0.492  0.348  1.0
  O  O24  1  0.492  0.587  0.848  1.0
  O  O25  1  0.413  0.508  0.652  1.0
  O  O26  1  0.833  0.034  0.308  1.0
  O  O27  1  0.966  0.167  0.192  1.0
  O  O28  1  0.167  0.966  0.692  1.0
  O  O29  1  0.034  0.833  0.808  1.0
  O  O30  1  0.168  0.273  0.149  1.0
  O  O31  1  0.664  0.637  0.107  1.0
  O  O32  1  0.637  0.664  0.607  1.0
  O  O33  1  0.336  0.363  0.893  1.0
  O  O34  1  0.363  0.336  0.393  1.0
  O  O35  1  0.273  0.168  0.649  1.0
[/CIF]
.
The material structure described by Na5P3O10 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 one O(4), one O(5), 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 one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms. In the third Na site, Na(3) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form distorted NaO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and edges with two equivalent P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  an edgeedge with one Na(3)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. In the second P site, P(2) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form corner-sharing PO4 tetrahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Na(3), two equivalent Na(2), and one P(1) atom to form distorted corner-sharing ONa3P tetrahedra. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Na(2), one Na(3), two equivalent Na(1), and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Na(2), two equivalent Na(1), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(2), one P(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(2), one Na(3), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na5P3O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.356
_cell_length_b   8.356
_cell_length_c   11.123
_cell_angle_alpha   87.280
_cell_angle_beta   87.280
_cell_angle_gamma   36.078
_symmetry_Int_Tables_number   1
_cell_volume   456.758
_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  0.301  0.778  0.039  1.0
  Na  Na1  1  0.778  0.301  0.539  1.0
  Na  Na2  1  0.699  0.222  0.961  1.0
  Na  Na3  1  0.108  0.575  0.208  1.0
  Na  Na4  1  0.425  0.892  0.292  1.0
  Na  Na5  1  0.892  0.425  0.792  1.0
  Na  Na6  1  0.000  0.500  0.500  1.0
  Na  Na7  1  0.500  0.000  0.000  1.0
  Na  Na8  1  0.575  0.108  0.708  1.0
  Na  Na9  1  0.222  0.699  0.461  1.0
  P  P10  1  0.048  0.657  0.901  1.0
  P  P11  1  0.343  0.952  0.599  1.0
  P  P12  1  0.952  0.343  0.099  1.0
  P  P13  1  0.657  0.048  0.401  1.0
  P  P14  1  0.302  0.698  0.750  1.0
  P  P15  1  0.698  0.302  0.250  1.0
  O  O16  1  0.727  0.832  0.351  1.0
  O  O17  1  0.968  0.792  0.020  1.0
  O  O18  1  0.208  0.032  0.480  1.0
  O  O19  1  0.032  0.208  0.980  1.0
  O  O20  1  0.792  0.968  0.520  1.0
  O  O21  1  0.832  0.727  0.851  1.0
  O  O22  1  0.508  0.413  0.152  1.0
  O  O23  1  0.587  0.492  0.348  1.0
  O  O24  1  0.492  0.587  0.848  1.0
  O  O25  1  0.413  0.508  0.652  1.0
  O  O26  1  0.833  0.034  0.308  1.0
  O  O27  1  0.966  0.167  0.192  1.0
  O  O28  1  0.167  0.966  0.692  1.0
  O  O29  1  0.034  0.833  0.808  1.0
  O  O30  1  0.168  0.273  0.149  1.0
  O  O31  1  0.664  0.637  0.107  1.0
  O  O32  1  0.637  0.664  0.607  1.0
  O  O33  1  0.336  0.363  0.893  1.0
  O  O34  1  0.363  0.336  0.393  1.0
  O  O35  1  0.273  0.168  0.649  1.0
[/CIF]
.