The structure described by NaVOPO4 crystallizes in the monoclinic P2_1/c space group. Na(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms. V(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 36°. P(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-53°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Na(1), one V(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent V(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Na(1), one V(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Na(1), one V(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Na(1), one V(1), and one P(1) atom. is represented by the CIF file [CIF]
data_NaVPO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.497
_cell_length_b   6.986
_cell_length_c   8.427
_cell_angle_alpha   89.999
_cell_angle_beta   89.999
_cell_angle_gamma   114.763
_symmetry_Int_Tables_number   1
_cell_volume   347.329
_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  0.743  0.726  0.583  1.0
  Na  Na1  1  0.257  0.774  0.083  1.0
  Na  Na2  1  0.257  0.274  0.417  1.0
  Na  Na3  1  0.743  0.226  0.917  1.0
  V  V4  1  0.246  0.519  0.759  1.0
  V  V5  1  0.754  0.981  0.259  1.0
  V  V6  1  0.754  0.481  0.241  1.0
  V  V7  1  0.246  0.019  0.741  1.0
  P  P8  1  0.250  0.252  0.068  1.0
  P  P9  1  0.750  0.248  0.568  1.0
  P  P10  1  0.750  0.748  0.932  1.0
  P  P11  1  0.250  0.752  0.432  1.0
  O  O12  1  0.345  0.126  0.964  1.0
  O  O13  1  0.655  0.374  0.464  1.0
  O  O14  1  0.655  0.874  0.036  1.0
  O  O15  1  0.345  0.626  0.536  1.0
  O  O16  1  0.748  0.748  0.317  1.0
  O  O17  1  0.252  0.752  0.817  1.0
  O  O18  1  0.252  0.252  0.683  1.0
  O  O19  1  0.748  0.248  0.183  1.0
  O  O20  1  0.928  0.399  0.682  1.0
  O  O21  1  0.072  0.101  0.182  1.0
  O  O22  1  0.072  0.601  0.318  1.0
  O  O23  1  0.928  0.899  0.818  1.0
  O  O24  1  0.144  0.868  0.536  1.0
  O  O25  1  0.856  0.632  0.036  1.0
  O  O26  1  0.856  0.132  0.464  1.0
  O  O27  1  0.144  0.368  0.964  1.0
  O  O28  1  0.563  0.091  0.673  1.0
  O  O29  1  0.437  0.409  0.173  1.0
  O  O30  1  0.437  0.909  0.327  1.0
  O  O31  1  0.563  0.591  0.827  1.0
[/CIF]
.
The structure described by NaVOPO4 crystallizes in the monoclinic P2_1/c space group. Na(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms. V(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 36°. P(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-53°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Na(1), one V(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1) and two equivalent V(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Na(1), one V(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Na(1), one V(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Na(1), one V(1), and one P(1) atom. is represented by the CIF file [CIF]
data_NaVPO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.497
_cell_length_b   6.986
_cell_length_c   8.427
_cell_angle_alpha   89.999
_cell_angle_beta   89.999
_cell_angle_gamma   114.763
_symmetry_Int_Tables_number   1
_cell_volume   347.329
_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  0.743  0.726  0.583  1.0
  Na  Na1  1  0.257  0.774  0.083  1.0
  Na  Na2  1  0.257  0.274  0.417  1.0
  Na  Na3  1  0.743  0.226  0.917  1.0
  V  V4  1  0.246  0.519  0.759  1.0
  V  V5  1  0.754  0.981  0.259  1.0
  V  V6  1  0.754  0.481  0.241  1.0
  V  V7  1  0.246  0.019  0.741  1.0
  P  P8  1  0.250  0.252  0.068  1.0
  P  P9  1  0.750  0.248  0.568  1.0
  P  P10  1  0.750  0.748  0.932  1.0
  P  P11  1  0.250  0.752  0.432  1.0
  O  O12  1  0.345  0.126  0.964  1.0
  O  O13  1  0.655  0.374  0.464  1.0
  O  O14  1  0.655  0.874  0.036  1.0
  O  O15  1  0.345  0.626  0.536  1.0
  O  O16  1  0.748  0.748  0.317  1.0
  O  O17  1  0.252  0.752  0.817  1.0
  O  O18  1  0.252  0.252  0.683  1.0
  O  O19  1  0.748  0.248  0.183  1.0
  O  O20  1  0.928  0.399  0.682  1.0
  O  O21  1  0.072  0.101  0.182  1.0
  O  O22  1  0.072  0.601  0.318  1.0
  O  O23  1  0.928  0.899  0.818  1.0
  O  O24  1  0.144  0.868  0.536  1.0
  O  O25  1  0.856  0.632  0.036  1.0
  O  O26  1  0.856  0.132  0.464  1.0
  O  O27  1  0.144  0.368  0.964  1.0
  O  O28  1  0.563  0.091  0.673  1.0
  O  O29  1  0.437  0.409  0.173  1.0
  O  O30  1  0.437  0.909  0.327  1.0
  O  O31  1  0.563  0.591  0.827  1.0
[/CIF]
.