The compound described by Bi2P4O13 crystallizes in the monoclinic C2/c space group. Bi(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms. There are two 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(4), one O(5), one O(6), and one O(7) atom to form corner-sharing PO4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(4) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(5) is bonded in a bent 150 degrees geometry to one Bi(1) and one P(2) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Bi(1) and one P(2) atom. In the fourth O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Bi(1) and one P(2) atom. In the fifth O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent P(1) atoms. In the sixth O site, O(2) is bonded in a single-bond geometry to two equivalent Bi(1) and one P(1) atom. In the seventh O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Bi(1) and one P(1) atom. is represented by the CIF card [CIF]
data_Bi2P4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.910
_cell_length_b   6.910
_cell_length_c   13.228
_cell_angle_alpha   75.776
_cell_angle_beta   75.776
_cell_angle_gamma   59.703
_symmetry_Int_Tables_number   1
_cell_volume   523.055
_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  0.694  0.695  0.943  1.0
  Bi  Bi1  1  0.305  0.306  0.557  1.0
  Bi  Bi2  1  0.306  0.305  0.057  1.0
  Bi  Bi3  1  0.695  0.694  0.443  1.0
  P  P4  1  0.865  0.155  0.636  1.0
  P  P5  1  0.845  0.135  0.864  1.0
  P  P6  1  0.135  0.845  0.364  1.0
  P  P7  1  0.155  0.865  0.136  1.0
  P  P8  1  0.762  0.775  0.659  1.0
  P  P9  1  0.225  0.238  0.841  1.0
  P  P10  1  0.238  0.225  0.341  1.0
  P  P11  1  0.775  0.762  0.159  1.0
  O  O12  1  0.766  0.234  0.750  1.0
  O  O13  1  0.234  0.766  0.250  1.0
  O  O14  1  0.689  0.307  0.935  1.0
  O  O15  1  0.693  0.311  0.565  1.0
  O  O16  1  0.311  0.693  0.065  1.0
  O  O17  1  0.307  0.689  0.435  1.0
  O  O18  1  0.880  0.897  0.894  1.0
  O  O19  1  0.103  0.120  0.606  1.0
  O  O20  1  0.120  0.103  0.106  1.0
  O  O21  1  0.897  0.880  0.394  1.0
  O  O22  1  0.898  0.907  0.656  1.0
  O  O23  1  0.093  0.102  0.844  1.0
  O  O24  1  0.307  0.295  0.227  1.0
  O  O25  1  0.705  0.693  0.273  1.0
  O  O26  1  0.693  0.705  0.773  1.0
  O  O27  1  0.295  0.307  0.727  1.0
  O  O28  1  0.926  0.565  0.097  1.0
  O  O29  1  0.435  0.074  0.403  1.0
  O  O30  1  0.074  0.435  0.903  1.0
  O  O31  1  0.565  0.926  0.597  1.0
  O  O32  1  0.579  0.923  0.098  1.0
  O  O33  1  0.077  0.421  0.402  1.0
  O  O34  1  0.421  0.077  0.902  1.0
  O  O35  1  0.923  0.579  0.598  1.0
  O  O36  1  0.907  0.898  0.156  1.0
  O  O37  1  0.102  0.093  0.344  1.0
[/CIF]
.
The compound described by Bi2P4O13 crystallizes in the monoclinic C2/c space group. Bi(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms. There are two 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(4), one O(5), one O(6), and one O(7) atom to form corner-sharing PO4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(4) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(5) is bonded in a bent 150 degrees geometry to one Bi(1) and one P(2) atom. In the third O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Bi(1) and one P(2) atom. In the fourth O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Bi(1) and one P(2) atom. In the fifth O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent P(1) atoms. In the sixth O site, O(2) is bonded in a single-bond geometry to two equivalent Bi(1) and one P(1) atom. In the seventh O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Bi(1) and one P(1) atom. is represented by the CIF card [CIF]
data_Bi2P4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.910
_cell_length_b   6.910
_cell_length_c   13.228
_cell_angle_alpha   75.776
_cell_angle_beta   75.776
_cell_angle_gamma   59.703
_symmetry_Int_Tables_number   1
_cell_volume   523.055
_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  0.694  0.695  0.943  1.0
  Bi  Bi1  1  0.305  0.306  0.557  1.0
  Bi  Bi2  1  0.306  0.305  0.057  1.0
  Bi  Bi3  1  0.695  0.694  0.443  1.0
  P  P4  1  0.865  0.155  0.636  1.0
  P  P5  1  0.845  0.135  0.864  1.0
  P  P6  1  0.135  0.845  0.364  1.0
  P  P7  1  0.155  0.865  0.136  1.0
  P  P8  1  0.762  0.775  0.659  1.0
  P  P9  1  0.225  0.238  0.841  1.0
  P  P10  1  0.238  0.225  0.341  1.0
  P  P11  1  0.775  0.762  0.159  1.0
  O  O12  1  0.766  0.234  0.750  1.0
  O  O13  1  0.234  0.766  0.250  1.0
  O  O14  1  0.689  0.307  0.935  1.0
  O  O15  1  0.693  0.311  0.565  1.0
  O  O16  1  0.311  0.693  0.065  1.0
  O  O17  1  0.307  0.689  0.435  1.0
  O  O18  1  0.880  0.897  0.894  1.0
  O  O19  1  0.103  0.120  0.606  1.0
  O  O20  1  0.120  0.103  0.106  1.0
  O  O21  1  0.897  0.880  0.394  1.0
  O  O22  1  0.898  0.907  0.656  1.0
  O  O23  1  0.093  0.102  0.844  1.0
  O  O24  1  0.307  0.295  0.227  1.0
  O  O25  1  0.705  0.693  0.273  1.0
  O  O26  1  0.693  0.705  0.773  1.0
  O  O27  1  0.295  0.307  0.727  1.0
  O  O28  1  0.926  0.565  0.097  1.0
  O  O29  1  0.435  0.074  0.403  1.0
  O  O30  1  0.074  0.435  0.903  1.0
  O  O31  1  0.565  0.926  0.597  1.0
  O  O32  1  0.579  0.923  0.098  1.0
  O  O33  1  0.077  0.421  0.402  1.0
  O  O34  1  0.421  0.077  0.902  1.0
  O  O35  1  0.923  0.579  0.598  1.0
  O  O36  1  0.907  0.898  0.156  1.0
  O  O37  1  0.102  0.093  0.344  1.0
[/CIF]
.