The compound described by PbP2O7 crystallizes in the triclinic P-1 space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(12), one O(13), one O(14), one O(6), and two equivalent O(8) atoms. In the second Pb site, Pb(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(13), one O(4), two equivalent O(5), and two equivalent O(7) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(11), one O(5), one O(6), and one O(9) atom to form corner-sharing PO4 tetrahedra. In the third P site, P(3) is bonded to one O(12), one O(2), one O(3), and one O(8) atom to form corner-sharing PO4 tetrahedra. In the fourth P site, P(4) is bonded to one O(10), one O(11), one O(7), and one O(9) atom to form corner-sharing PO4 tetrahedra. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Pb(2) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one P(3) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(2) and one P(1) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to two equivalent Pb(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Pb(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to two equivalent Pb(2) and one P(4) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Pb(1) and one P(3) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one P(2) and one P(4) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Pb(2) and one P(4) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one P(2) and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Pb(1) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Pb(1) and one Pb(2) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one Pb(1) and one O(14) atom. is represented by the CIF file [CIF]
data_P2PbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.481
_cell_length_b   8.241
_cell_length_c   10.151
_cell_angle_alpha   77.886
_cell_angle_beta   80.425
_cell_angle_gamma   73.555
_symmetry_Int_Tables_number   1
_cell_volume   583.018
_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
  P  P0  1  0.960  0.542  0.780  1.0
  P  P1  1  0.040  0.458  0.220  1.0
  P  P2  1  0.668  0.071  0.343  1.0
  P  P3  1  0.332  0.929  0.657  1.0
  P  P4  1  0.837  0.727  0.025  1.0
  P  P5  1  0.163  0.273  0.975  1.0
  P  P6  1  0.585  0.730  0.458  1.0
  P  P7  1  0.415  0.270  0.542  1.0
  Pb  Pb8  1  0.709  0.145  0.963  1.0
  Pb  Pb9  1  0.291  0.855  0.037  1.0
  Pb  Pb10  1  0.110  0.737  0.437  1.0
  Pb  Pb11  1  0.890  0.263  0.563  1.0
  O  O12  1  0.986  0.315  0.321  1.0
  O  O13  1  0.014  0.685  0.679  1.0
  O  O14  1  0.849  0.581  0.158  1.0
  O  O15  1  0.151  0.419  0.842  1.0
  O  O16  1  0.839  0.618  0.912  1.0
  O  O17  1  0.161  0.382  0.088  1.0
  O  O18  1  0.848  0.432  0.748  1.0
  O  O19  1  0.152  0.568  0.252  1.0
  O  O20  1  0.818  0.027  0.437  1.0
  O  O21  1  0.182  0.973  0.563  1.0
  O  O22  1  0.714  0.132  0.194  1.0
  O  O23  1  0.286  0.868  0.806  1.0
  O  O24  1  0.785  0.623  0.462  1.0
  O  O25  1  0.215  0.377  0.538  1.0
  O  O26  1  0.644  0.853  0.036  1.0
  O  O27  1  0.356  0.147  0.964  1.0
  O  O28  1  0.580  0.911  0.357  1.0
  O  O29  1  0.420  0.089  0.643  1.0
  O  O30  1  0.556  0.340  0.586  1.0
  O  O31  1  0.444  0.660  0.414  1.0
  O  O32  1  0.489  0.216  0.394  1.0
  O  O33  1  0.511  0.784  0.606  1.0
  O  O34  1  0.994  0.813  0.001  1.0
  O  O35  1  0.006  0.187  0.999  1.0
  O  O36  1  0.832  0.079  0.761  1.0
  O  O37  1  0.168  0.921  0.239  1.0
  O  O38  1  0.515  0.462  0.950  1.0
  O  O39  1  0.485  0.538  0.050  1.0
[/CIF]
.
The compound described by PbP2O7 crystallizes in the triclinic P-1 space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(12), one O(13), one O(14), one O(6), and two equivalent O(8) atoms. In the second Pb site, Pb(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(13), one O(4), two equivalent O(5), and two equivalent O(7) atoms. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(11), one O(5), one O(6), and one O(9) atom to form corner-sharing PO4 tetrahedra. In the third P site, P(3) is bonded to one O(12), one O(2), one O(3), and one O(8) atom to form corner-sharing PO4 tetrahedra. In the fourth P site, P(4) is bonded to one O(10), one O(11), one O(7), and one O(9) atom to form corner-sharing PO4 tetrahedra. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Pb(2) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one P(3) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(2) and one P(1) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to two equivalent Pb(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Pb(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to two equivalent Pb(2) and one P(4) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Pb(1) and one P(3) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one P(2) and one P(4) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Pb(2) and one P(4) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one P(2) and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Pb(1) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Pb(1) and one Pb(2) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one Pb(1) and one O(14) atom. is represented by the CIF file [CIF]
data_P2PbO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.481
_cell_length_b   8.241
_cell_length_c   10.151
_cell_angle_alpha   77.886
_cell_angle_beta   80.425
_cell_angle_gamma   73.555
_symmetry_Int_Tables_number   1
_cell_volume   583.018
_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
  P  P0  1  0.960  0.542  0.780  1.0
  P  P1  1  0.040  0.458  0.220  1.0
  P  P2  1  0.668  0.071  0.343  1.0
  P  P3  1  0.332  0.929  0.657  1.0
  P  P4  1  0.837  0.727  0.025  1.0
  P  P5  1  0.163  0.273  0.975  1.0
  P  P6  1  0.585  0.730  0.458  1.0
  P  P7  1  0.415  0.270  0.542  1.0
  Pb  Pb8  1  0.709  0.145  0.963  1.0
  Pb  Pb9  1  0.291  0.855  0.037  1.0
  Pb  Pb10  1  0.110  0.737  0.437  1.0
  Pb  Pb11  1  0.890  0.263  0.563  1.0
  O  O12  1  0.986  0.315  0.321  1.0
  O  O13  1  0.014  0.685  0.679  1.0
  O  O14  1  0.849  0.581  0.158  1.0
  O  O15  1  0.151  0.419  0.842  1.0
  O  O16  1  0.839  0.618  0.912  1.0
  O  O17  1  0.161  0.382  0.088  1.0
  O  O18  1  0.848  0.432  0.748  1.0
  O  O19  1  0.152  0.568  0.252  1.0
  O  O20  1  0.818  0.027  0.437  1.0
  O  O21  1  0.182  0.973  0.563  1.0
  O  O22  1  0.714  0.132  0.194  1.0
  O  O23  1  0.286  0.868  0.806  1.0
  O  O24  1  0.785  0.623  0.462  1.0
  O  O25  1  0.215  0.377  0.538  1.0
  O  O26  1  0.644  0.853  0.036  1.0
  O  O27  1  0.356  0.147  0.964  1.0
  O  O28  1  0.580  0.911  0.357  1.0
  O  O29  1  0.420  0.089  0.643  1.0
  O  O30  1  0.556  0.340  0.586  1.0
  O  O31  1  0.444  0.660  0.414  1.0
  O  O32  1  0.489  0.216  0.394  1.0
  O  O33  1  0.511  0.784  0.606  1.0
  O  O34  1  0.994  0.813  0.001  1.0
  O  O35  1  0.006  0.187  0.999  1.0
  O  O36  1  0.832  0.079  0.761  1.0
  O  O37  1  0.168  0.921  0.239  1.0
  O  O38  1  0.515  0.462  0.950  1.0
  O  O39  1  0.485  0.538  0.050  1.0
[/CIF]
.