The crystal structure described by Bi6P2O15 crystallizes in the monoclinic C2 space group. There are six inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(8), and one O(9) atom. In the second Bi site, Bi(2) is bonded in a 6-coordinate geometry to one O(1), one O(14), one O(16), one O(5), one O(6), and one O(7) atom. In the third Bi site, Bi(3) is bonded in a 5-coordinate geometry to one O(10), one O(12), one O(2), one O(4), and one O(8) atom. In the fourth Bi site, Bi(4) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(12), one O(2), one O(6), and one O(7) atom. In the fifth Bi site, Bi(5) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(11), one O(15), one O(3), one O(6), and one O(8) atom. In the sixth Bi site, Bi(6) is bonded in a distorted pentagonal planar geometry to one O(1), one O(13), one O(14), one O(5), and one O(6) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(13), one O(15), one O(16), and one O(7) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(12), one O(3), one O(4), and one O(9) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Bi(2), one Bi(4), one Bi(5), and one Bi(6) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the second O site, O(2) is bonded in a water-like geometry to one Bi(3) and one Bi(4) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Bi(1), one Bi(5), and one P(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Bi(1), one Bi(3), and one P(2) atom. In the fifth O site, O(5) is bonded to two equivalent Bi(2) and two equivalent Bi(6) atoms to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the sixth O site, O(6) is bonded to one Bi(2), one Bi(4), one Bi(5), and one Bi(6) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Bi(2), one Bi(4), and one P(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Bi(1), one Bi(3), and one Bi(5) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Bi(1) and one P(2) atom. In the tenth O site, O(10) is bonded to one Bi(1), one Bi(3), one Bi(4), and one Bi(5) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the eleventh O site, O(11) is bonded in a water-like geometry to one Bi(1) and one Bi(5) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Bi(3), one Bi(4), and one P(2) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Bi(6) and one P(1) atom. In the fourteenth O site, O(14) is bonded to two equivalent Bi(2) and two equivalent Bi(6) atoms to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one Bi(5) and one P(1) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Bi(2) and one P(1) atom. is represented by the CIF card [CIF]
data_Bi6P2O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.899
_cell_length_b   7.899
_cell_length_c   17.299
_cell_angle_alpha   77.799
_cell_angle_beta   77.799
_cell_angle_gamma   41.147
_symmetry_Int_Tables_number   1
_cell_volume   691.809
_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
  Bi  Bi0  1  0.461  0.110  0.381  1.0
  Bi  Bi1  1  0.122  0.734  0.917  1.0
  Bi  Bi2  1  0.217  0.832  0.596  1.0
  Bi  Bi3  1  0.707  0.216  0.746  1.0
  Bi  Bi4  1  0.368  0.927  0.762  1.0
  Bi  Bi5  1  0.073  0.632  0.238  1.0
  Bi  Bi6  1  0.890  0.539  0.619  1.0
  Bi  Bi7  1  0.168  0.783  0.404  1.0
  Bi  Bi8  1  0.796  0.407  0.914  1.0
  Bi  Bi9  1  0.784  0.293  0.254  1.0
  Bi  Bi10  1  0.593  0.204  0.086  1.0
  Bi  Bi11  1  0.266  0.878  0.083  1.0
  P  P12  1  0.467  0.108  0.906  1.0
  P  P13  1  0.892  0.533  0.094  1.0
  P  P14  1  0.778  0.506  0.425  1.0
  P  P15  1  0.494  0.222  0.575  1.0
  O  O16  1  0.467  0.597  0.838  1.0
  O  O17  1  0.183  0.964  0.295  1.0
  O  O18  1  0.352  0.208  0.648  1.0
  O  O19  1  0.631  0.681  0.495  1.0
  O  O20  1  0.319  0.369  0.505  1.0
  O  O21  1  0.938  0.062  0.000  1.0
  O  O22  1  0.972  0.082  0.834  1.0
  O  O23  1  0.056  0.276  0.150  1.0
  O  O24  1  0.303  0.500  0.335  1.0
  O  O25  1  0.054  0.237  0.444  1.0
  O  O26  1  0.763  0.946  0.556  1.0
  O  O27  1  0.007  0.178  0.665  1.0
  O  O28  1  0.387  0.196  0.256  1.0
  O  O29  1  0.626  0.469  0.404  1.0
  O  O30  1  0.804  0.613  0.744  1.0
  O  O31  1  0.531  0.374  0.596  1.0
  O  O32  1  0.822  0.993  0.335  1.0
  O  O33  1  0.403  0.533  0.162  1.0
  O  O34  1  0.036  0.817  0.705  1.0
  O  O35  1  0.918  0.028  0.166  1.0
  O  O36  1  0.891  0.484  0.014  1.0
  O  O37  1  0.452  0.548  0.000  1.0
  O  O38  1  0.381  0.981  0.912  1.0
  O  O39  1  0.620  0.743  0.136  1.0
  O  O40  1  0.019  0.619  0.088  1.0
  O  O41  1  0.516  0.109  0.986  1.0
  O  O42  1  0.792  0.648  0.352  1.0
  O  O43  1  0.257  0.380  0.864  1.0
  O  O44  1  0.724  0.944  0.850  1.0
  O  O45  1  0.500  0.697  0.665  1.0
[/CIF]
.
The crystal structure described by Bi6P2O15 crystallizes in the monoclinic C2 space group. There are six inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(8), and one O(9) atom. In the second Bi site, Bi(2) is bonded in a 6-coordinate geometry to one O(1), one O(14), one O(16), one O(5), one O(6), and one O(7) atom. In the third Bi site, Bi(3) is bonded in a 5-coordinate geometry to one O(10), one O(12), one O(2), one O(4), and one O(8) atom. In the fourth Bi site, Bi(4) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(12), one O(2), one O(6), and one O(7) atom. In the fifth Bi site, Bi(5) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(11), one O(15), one O(3), one O(6), and one O(8) atom. In the sixth Bi site, Bi(6) is bonded in a distorted pentagonal planar geometry to one O(1), one O(13), one O(14), one O(5), and one O(6) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(13), one O(15), one O(16), and one O(7) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(12), one O(3), one O(4), and one O(9) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Bi(2), one Bi(4), one Bi(5), and one Bi(6) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the second O site, O(2) is bonded in a water-like geometry to one Bi(3) and one Bi(4) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Bi(1), one Bi(5), and one P(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Bi(1), one Bi(3), and one P(2) atom. In the fifth O site, O(5) is bonded to two equivalent Bi(2) and two equivalent Bi(6) atoms to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the sixth O site, O(6) is bonded to one Bi(2), one Bi(4), one Bi(5), and one Bi(6) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Bi(2), one Bi(4), and one P(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Bi(1), one Bi(3), and one Bi(5) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Bi(1) and one P(2) atom. In the tenth O site, O(10) is bonded to one Bi(1), one Bi(3), one Bi(4), and one Bi(5) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the eleventh O site, O(11) is bonded in a water-like geometry to one Bi(1) and one Bi(5) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Bi(3), one Bi(4), and one P(2) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Bi(6) and one P(1) atom. In the fourteenth O site, O(14) is bonded to two equivalent Bi(2) and two equivalent Bi(6) atoms to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one Bi(5) and one P(1) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Bi(2) and one P(1) atom. is represented by the CIF card [CIF]
data_Bi6P2O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.899
_cell_length_b   7.899
_cell_length_c   17.299
_cell_angle_alpha   77.799
_cell_angle_beta   77.799
_cell_angle_gamma   41.147
_symmetry_Int_Tables_number   1
_cell_volume   691.809
_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
  Bi  Bi0  1  0.461  0.110  0.381  1.0
  Bi  Bi1  1  0.122  0.734  0.917  1.0
  Bi  Bi2  1  0.217  0.832  0.596  1.0
  Bi  Bi3  1  0.707  0.216  0.746  1.0
  Bi  Bi4  1  0.368  0.927  0.762  1.0
  Bi  Bi5  1  0.073  0.632  0.238  1.0
  Bi  Bi6  1  0.890  0.539  0.619  1.0
  Bi  Bi7  1  0.168  0.783  0.404  1.0
  Bi  Bi8  1  0.796  0.407  0.914  1.0
  Bi  Bi9  1  0.784  0.293  0.254  1.0
  Bi  Bi10  1  0.593  0.204  0.086  1.0
  Bi  Bi11  1  0.266  0.878  0.083  1.0
  P  P12  1  0.467  0.108  0.906  1.0
  P  P13  1  0.892  0.533  0.094  1.0
  P  P14  1  0.778  0.506  0.425  1.0
  P  P15  1  0.494  0.222  0.575  1.0
  O  O16  1  0.467  0.597  0.838  1.0
  O  O17  1  0.183  0.964  0.295  1.0
  O  O18  1  0.352  0.208  0.648  1.0
  O  O19  1  0.631  0.681  0.495  1.0
  O  O20  1  0.319  0.369  0.505  1.0
  O  O21  1  0.938  0.062  0.000  1.0
  O  O22  1  0.972  0.082  0.834  1.0
  O  O23  1  0.056  0.276  0.150  1.0
  O  O24  1  0.303  0.500  0.335  1.0
  O  O25  1  0.054  0.237  0.444  1.0
  O  O26  1  0.763  0.946  0.556  1.0
  O  O27  1  0.007  0.178  0.665  1.0
  O  O28  1  0.387  0.196  0.256  1.0
  O  O29  1  0.626  0.469  0.404  1.0
  O  O30  1  0.804  0.613  0.744  1.0
  O  O31  1  0.531  0.374  0.596  1.0
  O  O32  1  0.822  0.993  0.335  1.0
  O  O33  1  0.403  0.533  0.162  1.0
  O  O34  1  0.036  0.817  0.705  1.0
  O  O35  1  0.918  0.028  0.166  1.0
  O  O36  1  0.891  0.484  0.014  1.0
  O  O37  1  0.452  0.548  0.000  1.0
  O  O38  1  0.381  0.981  0.912  1.0
  O  O39  1  0.620  0.743  0.136  1.0
  O  O40  1  0.019  0.619  0.088  1.0
  O  O41  1  0.516  0.109  0.986  1.0
  O  O42  1  0.792  0.648  0.352  1.0
  O  O43  1  0.257  0.380  0.864  1.0
  O  O44  1  0.724  0.944  0.850  1.0
  O  O45  1  0.500  0.697  0.665  1.0
[/CIF]
.