The structure described by KBPbP2O8 crystallizes in the monoclinic Cc space group. K(1) is bonded in a 9-coordinate geometry to one O(1), one O(4), one O(8), two equivalent O(2), two equivalent O(3), and two equivalent O(7) atoms. B(1) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form BO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one Pb(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1), one Pb(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1), one Pb(1), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one Pb(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one B(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one B(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1), one B(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one K(1), one B(1), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KBP2PbO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.164
_cell_length_b   7.164
_cell_length_c   8.773
_cell_angle_alpha   67.466
_cell_angle_beta   67.466
_cell_angle_gamma   90.749
_symmetry_Int_Tables_number   1
_cell_volume   377.336
_cell_formula_units_Z   2
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
  K  K0  1  0.235  0.377  0.254  1.0
  K  K1  1  0.377  0.235  0.754  1.0
  B  B2  1  0.736  0.016  0.500  1.0
  B  B3  1  0.016  0.736  1.000  1.0
  P  P4  1  0.021  0.867  0.265  1.0
  P  P5  1  0.722  0.382  0.241  1.0
  P  P6  1  0.867  0.021  0.765  1.0
  P  P7  1  0.382  0.722  0.741  1.0
  Pb  Pb8  1  0.526  0.908  0.219  1.0
  Pb  Pb9  1  0.908  0.526  0.719  1.0
  O  O10  1  0.059  0.663  0.385  1.0
  O  O11  1  0.203  0.041  0.179  1.0
  O  O12  1  0.571  0.513  0.302  1.0
  O  O13  1  0.651  0.256  0.159  1.0
  O  O14  1  0.041  0.203  0.679  1.0
  O  O15  1  0.513  0.571  0.802  1.0
  O  O16  1  0.256  0.651  0.659  1.0
  O  O17  1  0.663  0.059  0.885  1.0
  O  O18  1  0.809  0.913  0.377  1.0
  O  O19  1  0.960  0.849  0.115  1.0
  O  O20  1  0.775  0.240  0.405  1.0
  O  O21  1  0.946  0.512  0.099  1.0
  O  O22  1  0.849  0.960  0.615  1.0
  O  O23  1  0.240  0.775  0.905  1.0
  O  O24  1  0.512  0.946  0.599  1.0
  O  O25  1  0.913  0.809  0.877  1.0
[/CIF]
.
The structure described by KBPbP2O8 crystallizes in the monoclinic Cc space group. K(1) is bonded in a 9-coordinate geometry to one O(1), one O(4), one O(8), two equivalent O(2), two equivalent O(3), and two equivalent O(7) atoms. B(1) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form BO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one Pb(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1), one Pb(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1), one Pb(1), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one Pb(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one B(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one B(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1), one B(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one K(1), one B(1), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KBP2PbO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.164
_cell_length_b   7.164
_cell_length_c   8.773
_cell_angle_alpha   67.466
_cell_angle_beta   67.466
_cell_angle_gamma   90.749
_symmetry_Int_Tables_number   1
_cell_volume   377.336
_cell_formula_units_Z   2
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
  K  K0  1  0.235  0.377  0.254  1.0
  K  K1  1  0.377  0.235  0.754  1.0
  B  B2  1  0.736  0.016  0.500  1.0
  B  B3  1  0.016  0.736  1.000  1.0
  P  P4  1  0.021  0.867  0.265  1.0
  P  P5  1  0.722  0.382  0.241  1.0
  P  P6  1  0.867  0.021  0.765  1.0
  P  P7  1  0.382  0.722  0.741  1.0
  Pb  Pb8  1  0.526  0.908  0.219  1.0
  Pb  Pb9  1  0.908  0.526  0.719  1.0
  O  O10  1  0.059  0.663  0.385  1.0
  O  O11  1  0.203  0.041  0.179  1.0
  O  O12  1  0.571  0.513  0.302  1.0
  O  O13  1  0.651  0.256  0.159  1.0
  O  O14  1  0.041  0.203  0.679  1.0
  O  O15  1  0.513  0.571  0.802  1.0
  O  O16  1  0.256  0.651  0.659  1.0
  O  O17  1  0.663  0.059  0.885  1.0
  O  O18  1  0.809  0.913  0.377  1.0
  O  O19  1  0.960  0.849  0.115  1.0
  O  O20  1  0.775  0.240  0.405  1.0
  O  O21  1  0.946  0.512  0.099  1.0
  O  O22  1  0.849  0.960  0.615  1.0
  O  O23  1  0.240  0.775  0.905  1.0
  O  O24  1  0.512  0.946  0.599  1.0
  O  O25  1  0.913  0.809  0.877  1.0
[/CIF]
.