The structure described by Na5V2(PO5)3 crystallizes in the monoclinic Cm space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(6), one O(8), and one O(9) atom. In the second Na site, Na(2) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. In the third Na site, Na(3) is bonded in a 5-coordinate geometry to one O(8), two equivalent O(1), and two equivalent O(7) atoms. V(1) is bonded to one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted VO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with three equivalent V(1)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(8), one O(9), and two equivalent O(7) atoms to form PO4 tetrahedra that share corners with two equivalent V(1)O5 trigonal bipyramids. There are nine inequivalent O sites. In the first O site, O(8) is bonded in a distorted tetrahedral geometry to one Na(3), two equivalent Na(1), and one P(2) atom. In the second O site, O(9) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one P(2) atom. In the third O site, O(1) is bonded in a distorted linear geometry to two equivalent Na(3) atoms. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), two equivalent Na(2), and one P(1) atom. In the fifth O site, O(3) is bonded in a 1-coordinate geometry to one Na(1), two equivalent Na(2), and one V(1) atom. In the sixth O site, O(4) is bonded in a 2-coordinate geometry to one Na(2), one V(1), and one P(1) atom. In the seventh O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Na(2), one V(1), and one P(1) atom. In the eighth O site, O(6) is bonded in a 3-coordinate geometry to one Na(1), one V(1), and one P(1) atom. In the ninth O site, O(7) is bonded in a 3-coordinate geometry to one Na(3), one V(1), and one P(2) atom. is represented by the CIF file [CIF]
data_Na5V2(PO5)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.227
_cell_length_b   6.361
_cell_length_c   10.653
_cell_angle_alpha   72.629
_cell_angle_beta   89.655
_cell_angle_gamma   88.844
_symmetry_Int_Tables_number   1
_cell_volume   338.020
_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  0.988  0.913  0.828  1.0
  Na  Na1  1  0.988  0.741  0.172  1.0
  Na  Na2  1  0.019  0.493  0.524  1.0
  Na  Na3  1  0.019  0.017  0.476  1.0
  Na  Na4  1  0.397  0.185  0.000  1.0
  V  V5  1  0.501  0.651  0.698  1.0
  V  V6  1  0.501  0.349  0.302  1.0
  P  P7  1  0.503  0.183  0.628  1.0
  P  P8  1  0.503  0.810  0.372  1.0
  P  P9  1  0.463  0.657  0.000  1.0
  O  O10  1  0.893  0.205  0.000  1.0
  O  O11  1  0.794  0.172  0.621  1.0
  O  O12  1  0.794  0.793  0.379  1.0
  O  O13  1  0.815  0.662  0.686  1.0
  O  O14  1  0.815  0.348  0.314  1.0
  O  O15  1  0.404  0.345  0.703  1.0
  O  O16  1  0.404  0.048  0.297  1.0
  O  O17  1  0.375  0.745  0.513  1.0
  O  O18  1  0.375  0.258  0.487  1.0
  O  O19  1  0.389  0.953  0.701  1.0
  O  O20  1  0.389  0.654  0.299  1.0
  O  O21  1  0.399  0.565  0.880  1.0
  O  O22  1  0.399  0.445  0.120  1.0
  O  O23  1  0.279  0.845  0.000  1.0
  O  O24  1  0.743  0.715  0.000  1.0
[/CIF]
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The structure described by Na5V2(PO5)3 crystallizes in the monoclinic Cm space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(6), one O(8), and one O(9) atom. In the second Na site, Na(2) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. In the third Na site, Na(3) is bonded in a 5-coordinate geometry to one O(8), two equivalent O(1), and two equivalent O(7) atoms. V(1) is bonded to one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted VO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with three equivalent V(1)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(8), one O(9), and two equivalent O(7) atoms to form PO4 tetrahedra that share corners with two equivalent V(1)O5 trigonal bipyramids. There are nine inequivalent O sites. In the first O site, O(8) is bonded in a distorted tetrahedral geometry to one Na(3), two equivalent Na(1), and one P(2) atom. In the second O site, O(9) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one P(2) atom. In the third O site, O(1) is bonded in a distorted linear geometry to two equivalent Na(3) atoms. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), two equivalent Na(2), and one P(1) atom. In the fifth O site, O(3) is bonded in a 1-coordinate geometry to one Na(1), two equivalent Na(2), and one V(1) atom. In the sixth O site, O(4) is bonded in a 2-coordinate geometry to one Na(2), one V(1), and one P(1) atom. In the seventh O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Na(2), one V(1), and one P(1) atom. In the eighth O site, O(6) is bonded in a 3-coordinate geometry to one Na(1), one V(1), and one P(1) atom. In the ninth O site, O(7) is bonded in a 3-coordinate geometry to one Na(3), one V(1), and one P(2) atom. is represented by the CIF file [CIF]
data_Na5V2(PO5)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.227
_cell_length_b   6.361
_cell_length_c   10.653
_cell_angle_alpha   72.629
_cell_angle_beta   89.655
_cell_angle_gamma   88.844
_symmetry_Int_Tables_number   1
_cell_volume   338.020
_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  0.988  0.913  0.828  1.0
  Na  Na1  1  0.988  0.741  0.172  1.0
  Na  Na2  1  0.019  0.493  0.524  1.0
  Na  Na3  1  0.019  0.017  0.476  1.0
  Na  Na4  1  0.397  0.185  0.000  1.0
  V  V5  1  0.501  0.651  0.698  1.0
  V  V6  1  0.501  0.349  0.302  1.0
  P  P7  1  0.503  0.183  0.628  1.0
  P  P8  1  0.503  0.810  0.372  1.0
  P  P9  1  0.463  0.657  0.000  1.0
  O  O10  1  0.893  0.205  0.000  1.0
  O  O11  1  0.794  0.172  0.621  1.0
  O  O12  1  0.794  0.793  0.379  1.0
  O  O13  1  0.815  0.662  0.686  1.0
  O  O14  1  0.815  0.348  0.314  1.0
  O  O15  1  0.404  0.345  0.703  1.0
  O  O16  1  0.404  0.048  0.297  1.0
  O  O17  1  0.375  0.745  0.513  1.0
  O  O18  1  0.375  0.258  0.487  1.0
  O  O19  1  0.389  0.953  0.701  1.0
  O  O20  1  0.389  0.654  0.299  1.0
  O  O21  1  0.399  0.565  0.880  1.0
  O  O22  1  0.399  0.445  0.120  1.0
  O  O23  1  0.279  0.845  0.000  1.0
  O  O24  1  0.743  0.715  0.000  1.0
[/CIF]
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