The crystal structure described by VOPO4 crystallizes in the monoclinic P2_1/c space group. V(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form VO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra and  an edgeedge with one V(1)O6 octahedra. 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 corners with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-47°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one V(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one V(1) and one P(1) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent V(1) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one V(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one P(1) atom. is represented by the CIF card [CIF]
data_VPO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.454
_cell_length_b   5.052
_cell_length_c   7.296
_cell_angle_alpha   65.848
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   351.614
_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
  V  V0  1  0.074  0.426  0.176  1.0
  V  V1  1  0.574  0.574  0.324  1.0
  V  V2  1  0.426  0.426  0.676  1.0
  V  V3  1  0.926  0.574  0.824  1.0
  P  P4  1  0.651  0.217  0.028  1.0
  P  P5  1  0.151  0.783  0.472  1.0
  P  P6  1  0.849  0.217  0.528  1.0
  P  P7  1  0.349  0.783  0.972  1.0
  O  O8  1  0.219  0.633  0.044  1.0
  O  O9  1  0.677  0.887  0.149  1.0
  O  O10  1  0.041  0.276  0.004  1.0
  O  O11  1  0.428  0.753  0.160  1.0
  O  O12  1  0.583  0.345  0.157  1.0
  O  O13  1  0.083  0.655  0.343  1.0
  O  O14  1  0.928  0.247  0.340  1.0
  O  O15  1  0.541  0.724  0.496  1.0
  O  O16  1  0.177  0.113  0.351  1.0
  O  O17  1  0.719  0.367  0.456  1.0
  O  O18  1  0.281  0.633  0.544  1.0
  O  O19  1  0.823  0.887  0.649  1.0
  O  O20  1  0.459  0.276  0.504  1.0
  O  O21  1  0.072  0.753  0.660  1.0
  O  O22  1  0.781  0.367  0.956  1.0
  O  O23  1  0.417  0.655  0.843  1.0
  O  O24  1  0.572  0.247  0.840  1.0
  O  O25  1  0.959  0.724  0.996  1.0
  O  O26  1  0.323  0.113  0.851  1.0
  O  O27  1  0.917  0.345  0.657  1.0
[/CIF]
.
The crystal structure described by VOPO4 crystallizes in the monoclinic P2_1/c space group. V(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form VO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra and  an edgeedge with one V(1)O6 octahedra. 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 corners with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-47°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one V(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one V(1) and one P(1) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent V(1) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one V(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one P(1) atom. is represented by the CIF card [CIF]
data_VPO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.454
_cell_length_b   5.052
_cell_length_c   7.296
_cell_angle_alpha   65.848
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   351.614
_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
  V  V0  1  0.074  0.426  0.176  1.0
  V  V1  1  0.574  0.574  0.324  1.0
  V  V2  1  0.426  0.426  0.676  1.0
  V  V3  1  0.926  0.574  0.824  1.0
  P  P4  1  0.651  0.217  0.028  1.0
  P  P5  1  0.151  0.783  0.472  1.0
  P  P6  1  0.849  0.217  0.528  1.0
  P  P7  1  0.349  0.783  0.972  1.0
  O  O8  1  0.219  0.633  0.044  1.0
  O  O9  1  0.677  0.887  0.149  1.0
  O  O10  1  0.041  0.276  0.004  1.0
  O  O11  1  0.428  0.753  0.160  1.0
  O  O12  1  0.583  0.345  0.157  1.0
  O  O13  1  0.083  0.655  0.343  1.0
  O  O14  1  0.928  0.247  0.340  1.0
  O  O15  1  0.541  0.724  0.496  1.0
  O  O16  1  0.177  0.113  0.351  1.0
  O  O17  1  0.719  0.367  0.456  1.0
  O  O18  1  0.281  0.633  0.544  1.0
  O  O19  1  0.823  0.887  0.649  1.0
  O  O20  1  0.459  0.276  0.504  1.0
  O  O21  1  0.072  0.753  0.660  1.0
  O  O22  1  0.781  0.367  0.956  1.0
  O  O23  1  0.417  0.655  0.843  1.0
  O  O24  1  0.572  0.247  0.840  1.0
  O  O25  1  0.959  0.724  0.996  1.0
  O  O26  1  0.323  0.113  0.851  1.0
  O  O27  1  0.917  0.345  0.657  1.0
[/CIF]
.