The material described by B10(Pb2O7)3 crystallizes in the triclinic P-1 space group. There are five inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(10), one O(8), and one O(9) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(1), one O(11), and one O(2) atom. In the fourth B site, B(4) is bonded to one O(2), one O(3), one O(4), and one O(7) atom to form corner-sharing BO4 tetrahedra. In the fifth B site, B(5) is bonded to one O(11), one O(6), one O(7), and one O(8) atom to form corner-sharing BO4 tetrahedra. There are three inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(7), and two equivalent O(9) atoms. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(1), one O(3), and one O(6) atom. In the third Pb site, Pb(3) is bonded in a 3-coordinate geometry to one O(11), one O(3), and one O(5) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one B(3), one Pb(1), and one Pb(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one B(3) and one B(4) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one B(4), one Pb(2), and one Pb(3) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one B(2) and one B(4) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one B(2) and one Pb(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one B(2), one B(5), and one Pb(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one B(4), one B(5), and one Pb(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one B(1) and one B(5) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one B(1) and two equivalent Pb(1) atoms. In the tenth O site, O(10) is bonded in a linear geometry to two equivalent B(1) atoms. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one B(3), one B(5), and one Pb(3) atom. is represented by the CIF file [CIF]
data_B10(Pb2O7)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.842
_cell_length_b   7.008
_cell_length_c   11.139
_cell_angle_alpha   82.792
_cell_angle_beta   78.560
_cell_angle_gamma   61.019
_symmetry_Int_Tables_number   1
_cell_volume   457.702
_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
  B  B0  1  0.218  0.869  0.945  1.0
  B  B1  1  0.782  0.131  0.055  1.0
  B  B2  1  0.525  0.673  0.572  1.0
  B  B3  1  0.475  0.327  0.428  1.0
  B  B4  1  0.724  0.173  0.759  1.0
  B  B5  1  0.276  0.827  0.241  1.0
  B  B6  1  0.833  0.465  0.703  1.0
  B  B7  1  0.167  0.535  0.297  1.0
  B  B8  1  0.444  0.566  0.797  1.0
  B  B9  1  0.556  0.434  0.203  1.0
  Pb  Pb10  1  0.760  0.734  0.937  1.0
  Pb  Pb11  1  0.240  0.266  0.063  1.0
  Pb  Pb12  1  0.033  0.761  0.589  1.0
  Pb  Pb13  1  0.967  0.239  0.411  1.0
  Pb  Pb14  1  0.345  0.140  0.699  1.0
  Pb  Pb15  1  0.655  0.860  0.301  1.0
  O  O16  1  0.768  0.961  0.762  1.0
  O  O17  1  0.887  0.232  0.706  1.0
  O  O18  1  0.968  0.519  0.288  1.0
  O  O19  1  0.032  0.481  0.712  1.0
  O  O20  1  0.247  0.427  0.418  1.0
  O  O21  1  0.113  0.768  0.294  1.0
  O  O22  1  0.557  0.218  0.529  1.0
  O  O23  1  0.443  0.782  0.471  1.0
  O  O24  1  0.629  0.336  0.326  1.0
  O  O25  1  0.371  0.664  0.674  1.0
  O  O26  1  0.351  0.424  0.199  1.0
  O  O27  1  0.649  0.576  0.801  1.0
  O  O28  1  0.739  0.318  0.107  1.0
  O  O29  1  0.261  0.682  0.893  1.0
  O  O30  1  0.626  0.063  0.056  1.0
  O  O31  1  0.374  0.937  0.944  1.0
  O  O32  1  0.000  0.000  0.000  1.0
  O  O33  1  0.502  0.329  0.801  1.0
  O  O34  1  0.498  0.671  0.199  1.0
  O  O35  1  0.753  0.573  0.582  1.0
  O  O36  1  0.232  0.039  0.238  1.0
[/CIF]
.
The material described by B10(Pb2O7)3 crystallizes in the triclinic P-1 space group. There are five inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(10), one O(8), and one O(9) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(1), one O(11), and one O(2) atom. In the fourth B site, B(4) is bonded to one O(2), one O(3), one O(4), and one O(7) atom to form corner-sharing BO4 tetrahedra. In the fifth B site, B(5) is bonded to one O(11), one O(6), one O(7), and one O(8) atom to form corner-sharing BO4 tetrahedra. There are three inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(7), and two equivalent O(9) atoms. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(1), one O(3), and one O(6) atom. In the third Pb site, Pb(3) is bonded in a 3-coordinate geometry to one O(11), one O(3), and one O(5) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one B(3), one Pb(1), and one Pb(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one B(3) and one B(4) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one B(4), one Pb(2), and one Pb(3) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one B(2) and one B(4) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one B(2) and one Pb(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one B(2), one B(5), and one Pb(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one B(4), one B(5), and one Pb(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one B(1) and one B(5) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one B(1) and two equivalent Pb(1) atoms. In the tenth O site, O(10) is bonded in a linear geometry to two equivalent B(1) atoms. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one B(3), one B(5), and one Pb(3) atom. is represented by the CIF file [CIF]
data_B10(Pb2O7)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.842
_cell_length_b   7.008
_cell_length_c   11.139
_cell_angle_alpha   82.792
_cell_angle_beta   78.560
_cell_angle_gamma   61.019
_symmetry_Int_Tables_number   1
_cell_volume   457.702
_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
  B  B0  1  0.218  0.869  0.945  1.0
  B  B1  1  0.782  0.131  0.055  1.0
  B  B2  1  0.525  0.673  0.572  1.0
  B  B3  1  0.475  0.327  0.428  1.0
  B  B4  1  0.724  0.173  0.759  1.0
  B  B5  1  0.276  0.827  0.241  1.0
  B  B6  1  0.833  0.465  0.703  1.0
  B  B7  1  0.167  0.535  0.297  1.0
  B  B8  1  0.444  0.566  0.797  1.0
  B  B9  1  0.556  0.434  0.203  1.0
  Pb  Pb10  1  0.760  0.734  0.937  1.0
  Pb  Pb11  1  0.240  0.266  0.063  1.0
  Pb  Pb12  1  0.033  0.761  0.589  1.0
  Pb  Pb13  1  0.967  0.239  0.411  1.0
  Pb  Pb14  1  0.345  0.140  0.699  1.0
  Pb  Pb15  1  0.655  0.860  0.301  1.0
  O  O16  1  0.768  0.961  0.762  1.0
  O  O17  1  0.887  0.232  0.706  1.0
  O  O18  1  0.968  0.519  0.288  1.0
  O  O19  1  0.032  0.481  0.712  1.0
  O  O20  1  0.247  0.427  0.418  1.0
  O  O21  1  0.113  0.768  0.294  1.0
  O  O22  1  0.557  0.218  0.529  1.0
  O  O23  1  0.443  0.782  0.471  1.0
  O  O24  1  0.629  0.336  0.326  1.0
  O  O25  1  0.371  0.664  0.674  1.0
  O  O26  1  0.351  0.424  0.199  1.0
  O  O27  1  0.649  0.576  0.801  1.0
  O  O28  1  0.739  0.318  0.107  1.0
  O  O29  1  0.261  0.682  0.893  1.0
  O  O30  1  0.626  0.063  0.056  1.0
  O  O31  1  0.374  0.937  0.944  1.0
  O  O32  1  0.000  0.000  0.000  1.0
  O  O33  1  0.502  0.329  0.801  1.0
  O  O34  1  0.498  0.671  0.199  1.0
  O  O35  1  0.753  0.573  0.582  1.0
  O  O36  1  0.232  0.039  0.238  1.0
[/CIF]
.