The structure described by B2Pb2O5 crystallizes in the triclinic P1 space group. There are six inequivalent B sites. In the first B site, B(1) is bonded to one O(1), one O(10), one O(7), and one O(9) atom to form corner-sharing BO4 tetrahedra. In the second B site, B(2) is bonded to one O(10), one O(11), one O(13), and one O(8) atom to form corner-sharing BO4 tetrahedra. In the third B site, B(3) is bonded to one O(13), one O(3), one O(5), and one O(6) atom to form corner-sharing BO4 tetrahedra. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(15), one O(4), and one O(5) atom. In the fifth B site, B(5) is bonded to one O(15), one O(2), one O(6), and one O(9) atom to form corner-sharing BO4 tetrahedra. In the sixth B site, B(6) is bonded in a trigonal planar geometry to one O(11), one O(12), and one O(7) atom. There are six inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(4), and one O(8) atom. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(4), 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 one O(10), one O(14), and one O(3) atom. In the fourth Pb site, Pb(4) is bonded in a 5-coordinate geometry to one O(12), one O(13), one O(14), one O(15), and one O(9) atom. In the fifth Pb site, Pb(5) is bonded in a 4-coordinate geometry to one O(1), one O(14), one O(2), and one O(4) atom. In the sixth Pb site, Pb(6) is bonded in a 3-coordinate geometry to one O(1), one O(12), and one O(14) atom. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one B(1), one Pb(2), one Pb(5), and one Pb(6) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one B(5), one Pb(1), and one Pb(5) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one B(3), one Pb(1), and one Pb(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one B(4), one Pb(1), one Pb(2), and one Pb(5) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one B(3) and one B(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one B(3), one B(5), and one Pb(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one B(1), one B(6), and one Pb(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one B(2), one Pb(1), and one Pb(2) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one B(1), one B(5), and one Pb(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one B(1), one B(2), and one Pb(3) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one B(2), one B(6), and one Pb(2) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one B(6), one Pb(4), and one Pb(6) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 120 degrees geometry to one B(2), one B(3), and one Pb(4) atom. In the fourteenth O site, O(14) is bonded in a tetrahedral geometry to one Pb(3), one Pb(4), one Pb(5), and one Pb(6) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one B(4), one B(5), and one Pb(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_B2Pb2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.996
_cell_length_b   7.233
_cell_length_c   7.836
_cell_angle_alpha   76.230
_cell_angle_beta   76.505
_cell_angle_gamma   73.862
_symmetry_Int_Tables_number   1
_cell_volume   363.961
_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
  B  B0  1  0.216  0.095  0.493  1.0
  B  B1  1  0.210  0.102  0.168  1.0
  B  B2  1  0.889  0.284  0.018  1.0
  B  B3  1  0.730  0.579  0.809  1.0
  B  B4  1  0.876  0.249  0.709  1.0
  B  B5  1  0.176  0.796  0.406  1.0
  Pb  Pb6  1  0.685  0.938  0.011  1.0
  Pb  Pb7  1  0.251  0.890  0.867  1.0
  Pb  Pb8  1  0.438  0.427  0.182  1.0
  Pb  Pb9  1  0.881  0.498  0.338  1.0
  Pb  Pb10  1  0.704  0.024  0.495  1.0
  Pb  Pb11  1  0.352  0.406  0.677  1.0
  O  O12  1  0.349  0.109  0.607  1.0
  O  O13  1  0.730  0.129  0.741  1.0
  O  O14  1  0.720  0.196  0.111  1.0
  O  O15  1  0.616  0.766  0.781  1.0
  O  O16  1  0.804  0.501  0.966  1.0
  O  O17  1  0.992  0.205  0.853  1.0
  O  O18  1  0.200  0.888  0.534  1.0
  O  O19  1  0.357  0.085  0.003  1.0
  O  O20  1  0.012  0.226  0.533  1.0
  O  O21  1  0.302  0.147  0.303  1.0
  O  O22  1  0.156  0.908  0.238  1.0
  O  O23  1  0.173  0.604  0.445  1.0
  O  O24  1  0.032  0.263  0.137  1.0
  O  O25  1  0.589  0.372  0.418  1.0
  O  O26  1  0.766  0.462  0.683  1.0
[/CIF]
.
The structure described by B2Pb2O5 crystallizes in the triclinic P1 space group. There are six inequivalent B sites. In the first B site, B(1) is bonded to one O(1), one O(10), one O(7), and one O(9) atom to form corner-sharing BO4 tetrahedra. In the second B site, B(2) is bonded to one O(10), one O(11), one O(13), and one O(8) atom to form corner-sharing BO4 tetrahedra. In the third B site, B(3) is bonded to one O(13), one O(3), one O(5), and one O(6) atom to form corner-sharing BO4 tetrahedra. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(15), one O(4), and one O(5) atom. In the fifth B site, B(5) is bonded to one O(15), one O(2), one O(6), and one O(9) atom to form corner-sharing BO4 tetrahedra. In the sixth B site, B(6) is bonded in a trigonal planar geometry to one O(11), one O(12), and one O(7) atom. There are six inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(4), and one O(8) atom. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(4), 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 one O(10), one O(14), and one O(3) atom. In the fourth Pb site, Pb(4) is bonded in a 5-coordinate geometry to one O(12), one O(13), one O(14), one O(15), and one O(9) atom. In the fifth Pb site, Pb(5) is bonded in a 4-coordinate geometry to one O(1), one O(14), one O(2), and one O(4) atom. In the sixth Pb site, Pb(6) is bonded in a 3-coordinate geometry to one O(1), one O(12), and one O(14) atom. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one B(1), one Pb(2), one Pb(5), and one Pb(6) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one B(5), one Pb(1), and one Pb(5) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one B(3), one Pb(1), and one Pb(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one B(4), one Pb(1), one Pb(2), and one Pb(5) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one B(3) and one B(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one B(3), one B(5), and one Pb(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one B(1), one B(6), and one Pb(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one B(2), one Pb(1), and one Pb(2) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one B(1), one B(5), and one Pb(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one B(1), one B(2), and one Pb(3) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one B(2), one B(6), and one Pb(2) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one B(6), one Pb(4), and one Pb(6) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 120 degrees geometry to one B(2), one B(3), and one Pb(4) atom. In the fourteenth O site, O(14) is bonded in a tetrahedral geometry to one Pb(3), one Pb(4), one Pb(5), and one Pb(6) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one B(4), one B(5), and one Pb(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_B2Pb2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.996
_cell_length_b   7.233
_cell_length_c   7.836
_cell_angle_alpha   76.230
_cell_angle_beta   76.505
_cell_angle_gamma   73.862
_symmetry_Int_Tables_number   1
_cell_volume   363.961
_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
  B  B0  1  0.216  0.095  0.493  1.0
  B  B1  1  0.210  0.102  0.168  1.0
  B  B2  1  0.889  0.284  0.018  1.0
  B  B3  1  0.730  0.579  0.809  1.0
  B  B4  1  0.876  0.249  0.709  1.0
  B  B5  1  0.176  0.796  0.406  1.0
  Pb  Pb6  1  0.685  0.938  0.011  1.0
  Pb  Pb7  1  0.251  0.890  0.867  1.0
  Pb  Pb8  1  0.438  0.427  0.182  1.0
  Pb  Pb9  1  0.881  0.498  0.338  1.0
  Pb  Pb10  1  0.704  0.024  0.495  1.0
  Pb  Pb11  1  0.352  0.406  0.677  1.0
  O  O12  1  0.349  0.109  0.607  1.0
  O  O13  1  0.730  0.129  0.741  1.0
  O  O14  1  0.720  0.196  0.111  1.0
  O  O15  1  0.616  0.766  0.781  1.0
  O  O16  1  0.804  0.501  0.966  1.0
  O  O17  1  0.992  0.205  0.853  1.0
  O  O18  1  0.200  0.888  0.534  1.0
  O  O19  1  0.357  0.085  0.003  1.0
  O  O20  1  0.012  0.226  0.533  1.0
  O  O21  1  0.302  0.147  0.303  1.0
  O  O22  1  0.156  0.908  0.238  1.0
  O  O23  1  0.173  0.604  0.445  1.0
  O  O24  1  0.032  0.263  0.137  1.0
  O  O25  1  0.589  0.372  0.418  1.0
  O  O26  1  0.766  0.462  0.683  1.0
[/CIF]
.