The compound described by Pb3(VO4)2 crystallizes in the monoclinic C2 space group. V(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(4), and two equivalent O(2) atoms. In the second Pb site, Pb(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one V(1), one Pb(1), and one Pb(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one V(1), one Pb(2), and two equivalent Pb(1) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to one V(1), one Pb(1), and one Pb(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one V(1), one Pb(1), and one Pb(2) atom. is represented by the CIF file [CIF]
data_V2Pb3O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.661
_cell_length_b   5.661
_cell_length_c   7.477
_cell_angle_alpha   68.122
_cell_angle_beta   68.122
_cell_angle_gamma   67.487
_symmetry_Int_Tables_number   1
_cell_volume   197.926
_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
  V  V0  1  0.590  0.597  0.203  1.0
  V  V1  1  0.403  0.410  0.797  1.0
  Pb  Pb2  1  0.164  0.281  0.385  1.0
  Pb  Pb3  1  0.719  0.836  0.615  1.0
  Pb  Pb4  1  0.993  0.007  0.000  1.0
  O  O5  1  0.676  0.777  0.959  1.0
  O  O6  1  0.223  0.324  0.041  1.0
  O  O7  1  0.756  0.652  0.328  1.0
  O  O8  1  0.348  0.244  0.672  1.0
  O  O9  1  0.660  0.259  0.235  1.0
  O  O10  1  0.302  0.751  0.705  1.0
  O  O11  1  0.249  0.698  0.295  1.0
  O  O12  1  0.741  0.340  0.765  1.0
[/CIF]
.
The compound described by Pb3(VO4)2 crystallizes in the monoclinic C2 space group. V(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(4), and two equivalent O(2) atoms. In the second Pb site, Pb(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one V(1), one Pb(1), and one Pb(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one V(1), one Pb(2), and two equivalent Pb(1) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to one V(1), one Pb(1), and one Pb(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one V(1), one Pb(1), and one Pb(2) atom. is represented by the CIF file [CIF]
data_V2Pb3O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.661
_cell_length_b   5.661
_cell_length_c   7.477
_cell_angle_alpha   68.122
_cell_angle_beta   68.122
_cell_angle_gamma   67.487
_symmetry_Int_Tables_number   1
_cell_volume   197.926
_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
  V  V0  1  0.590  0.597  0.203  1.0
  V  V1  1  0.403  0.410  0.797  1.0
  Pb  Pb2  1  0.164  0.281  0.385  1.0
  Pb  Pb3  1  0.719  0.836  0.615  1.0
  Pb  Pb4  1  0.993  0.007  0.000  1.0
  O  O5  1  0.676  0.777  0.959  1.0
  O  O6  1  0.223  0.324  0.041  1.0
  O  O7  1  0.756  0.652  0.328  1.0
  O  O8  1  0.348  0.244  0.672  1.0
  O  O9  1  0.660  0.259  0.235  1.0
  O  O10  1  0.302  0.751  0.705  1.0
  O  O11  1  0.249  0.698  0.295  1.0
  O  O12  1  0.741  0.340  0.765  1.0
[/CIF]
.