The structure described by Pb3(PO4)2 crystallizes in the trigonal P3 space group. There are five inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the third Pb site, Pb(3) is bonded in a 3-coordinate geometry to three equivalent O(3) atoms. In the fourth Pb site, Pb(4) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(4) atoms. In the fifth Pb site, Pb(5) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(4), and three equivalent O(5) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(5), and one O(8) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(2), one O(4), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(2) atom. In the second O site, O(8) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(1) atom. In the third O site, O(1) is bonded in a 1-coordinate geometry to one Pb(1), one Pb(4), one Pb(5), and one P(1) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one Pb(2) and one P(2) atom. In the fifth O site, O(3) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(3), and one P(1) atom. In the sixth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(2), one Pb(4), one Pb(5), and one P(2) atom. In the seventh O site, O(5) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), one Pb(5), and one P(1) atom. In the eighth O site, O(6) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(2) atom. is represented by the CIF file [CIF]
data_P2Pb3O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.813
_cell_length_b   9.813
_cell_length_c   7.211
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   601.337
_cell_formula_units_Z   3
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
  P  P0  1  0.605  0.982  0.251  1.0
  P  P1  1  0.377  0.395  0.251  1.0
  P  P2  1  0.018  0.623  0.251  1.0
  P  P3  1  0.397  0.019  0.752  1.0
  P  P4  1  0.621  0.603  0.752  1.0
  P  P5  1  0.981  0.379  0.752  1.0
  Pb  Pb6  1  0.754  0.740  0.244  1.0
  Pb  Pb7  1  0.986  0.246  0.244  1.0
  Pb  Pb8  1  0.260  0.014  0.244  1.0
  Pb  Pb9  1  0.258  0.254  0.757  1.0
  Pb  Pb10  1  0.996  0.742  0.757  1.0
  Pb  Pb11  1  0.746  0.004  0.757  1.0
  Pb  Pb12  1  0.667  0.333  0.488  1.0
  Pb  Pb13  1  0.333  0.667  0.995  1.0
  Pb  Pb14  1  0.333  0.667  0.496  1.0
  O  O15  1  0.425  0.916  0.237  1.0
  O  O16  1  0.492  0.575  0.237  1.0
  O  O17  1  0.084  0.508  0.237  1.0
  O  O18  1  0.577  0.094  0.762  1.0
  O  O19  1  0.517  0.423  0.762  1.0
  O  O20  1  0.906  0.483  0.762  1.0
  O  O21  1  0.696  0.161  0.261  1.0
  O  O22  1  0.465  0.304  0.261  1.0
  O  O23  1  0.839  0.535  0.261  1.0
  O  O24  1  0.320  0.836  0.748  1.0
  O  O25  1  0.516  0.680  0.748  1.0
  O  O26  1  0.164  0.484  0.748  1.0
  O  O27  1  0.634  0.906  0.423  1.0
  O  O28  1  0.273  0.366  0.423  1.0
  O  O29  1  0.094  0.727  0.423  1.0
  O  O30  1  0.329  0.066  0.915  1.0
  O  O31  1  0.737  0.671  0.915  1.0
  O  O32  1  0.934  0.263  0.915  1.0
  O  O33  1  0.356  0.080  0.576  1.0
  O  O34  1  0.724  0.644  0.576  1.0
  O  O35  1  0.920  0.276  0.576  1.0
  O  O36  1  0.653  0.920  0.080  1.0
  O  O37  1  0.267  0.347  0.080  1.0
  O  O38  1  0.080  0.733  0.080  1.0
[/CIF]
.
The structure described by Pb3(PO4)2 crystallizes in the trigonal P3 space group. There are five inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the third Pb site, Pb(3) is bonded in a 3-coordinate geometry to three equivalent O(3) atoms. In the fourth Pb site, Pb(4) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(4) atoms. In the fifth Pb site, Pb(5) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(4), and three equivalent O(5) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(5), and one O(8) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(2), one O(4), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(2) atom. In the second O site, O(8) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(1) atom. In the third O site, O(1) is bonded in a 1-coordinate geometry to one Pb(1), one Pb(4), one Pb(5), and one P(1) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one Pb(2) and one P(2) atom. In the fifth O site, O(3) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(3), and one P(1) atom. In the sixth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(2), one Pb(4), one Pb(5), and one P(2) atom. In the seventh O site, O(5) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), one Pb(5), and one P(1) atom. In the eighth O site, O(6) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(2) atom. is represented by the CIF file [CIF]
data_P2Pb3O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.813
_cell_length_b   9.813
_cell_length_c   7.211
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   601.337
_cell_formula_units_Z   3
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
  P  P0  1  0.605  0.982  0.251  1.0
  P  P1  1  0.377  0.395  0.251  1.0
  P  P2  1  0.018  0.623  0.251  1.0
  P  P3  1  0.397  0.019  0.752  1.0
  P  P4  1  0.621  0.603  0.752  1.0
  P  P5  1  0.981  0.379  0.752  1.0
  Pb  Pb6  1  0.754  0.740  0.244  1.0
  Pb  Pb7  1  0.986  0.246  0.244  1.0
  Pb  Pb8  1  0.260  0.014  0.244  1.0
  Pb  Pb9  1  0.258  0.254  0.757  1.0
  Pb  Pb10  1  0.996  0.742  0.757  1.0
  Pb  Pb11  1  0.746  0.004  0.757  1.0
  Pb  Pb12  1  0.667  0.333  0.488  1.0
  Pb  Pb13  1  0.333  0.667  0.995  1.0
  Pb  Pb14  1  0.333  0.667  0.496  1.0
  O  O15  1  0.425  0.916  0.237  1.0
  O  O16  1  0.492  0.575  0.237  1.0
  O  O17  1  0.084  0.508  0.237  1.0
  O  O18  1  0.577  0.094  0.762  1.0
  O  O19  1  0.517  0.423  0.762  1.0
  O  O20  1  0.906  0.483  0.762  1.0
  O  O21  1  0.696  0.161  0.261  1.0
  O  O22  1  0.465  0.304  0.261  1.0
  O  O23  1  0.839  0.535  0.261  1.0
  O  O24  1  0.320  0.836  0.748  1.0
  O  O25  1  0.516  0.680  0.748  1.0
  O  O26  1  0.164  0.484  0.748  1.0
  O  O27  1  0.634  0.906  0.423  1.0
  O  O28  1  0.273  0.366  0.423  1.0
  O  O29  1  0.094  0.727  0.423  1.0
  O  O30  1  0.329  0.066  0.915  1.0
  O  O31  1  0.737  0.671  0.915  1.0
  O  O32  1  0.934  0.263  0.915  1.0
  O  O33  1  0.356  0.080  0.576  1.0
  O  O34  1  0.724  0.644  0.576  1.0
  O  O35  1  0.920  0.276  0.576  1.0
  O  O36  1  0.653  0.920  0.080  1.0
  O  O37  1  0.267  0.347  0.080  1.0
  O  O38  1  0.080  0.733  0.080  1.0
[/CIF]
.