The material described by Bi14CrO24 crystallizes in the monoclinic C2 space group. Cr(1) is bonded in a square co-planar geometry to one O(15), one O(6), and two equivalent O(1) atoms. There are eight 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(13), one O(3), one O(4), and one O(7) atom. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(12), one O(4), one O(5), one O(8), and one O(9) atom. In the third Bi site, Bi(3) is bonded to one O(10), one O(2), one O(5), one O(7), and one O(9) atom to form distorted corner-sharing BiO5 square pyramids. In the fourth Bi site, Bi(4) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(11), one O(14), one O(3), one O(4), and one O(8) atom. In the fifth Bi site, Bi(5) is bonded in a distorted body-centered cubic geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. In the sixth Bi site, Bi(6) is bonded to one O(11), one O(12), one O(14), one O(2), and one O(5) atom to form distorted corner-sharing BiO5 square pyramids. In the seventh Bi site, Bi(7) is bonded in a 5-coordinate geometry to one O(12), one O(13), one O(2), one O(3), and one O(9) atom. In the eighth Bi site, Bi(8) is bonded in a distorted body-centered cubic geometry to two equivalent O(10), two equivalent O(11), two equivalent O(12), and two equivalent O(9) atoms. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Cr(1) and one Bi(4) atom. In the second O site, O(2) is bonded to one Bi(3), one Bi(5), one Bi(6), and one Bi(7) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the third O site, O(3) is bonded to one Bi(1), one Bi(4), one Bi(5), and one Bi(7) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the fourth O site, O(4) is bonded to one Bi(1), one Bi(2), one Bi(4), and one Bi(5) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the fifth O site, O(5) is bonded to one Bi(2), one Bi(3), one Bi(5), and one Bi(6) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the sixth O site, O(6) is bonded in a single-bond geometry to one Cr(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to two equivalent Bi(1) and two equivalent Bi(3) atoms. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to two equivalent Bi(2) and two equivalent Bi(4) atoms. In the ninth O site, O(9) is bonded to one Bi(2), one Bi(3), one Bi(7), and one Bi(8) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the tenth O site, O(10) is bonded to one Bi(1), one Bi(3), one Bi(4), and one Bi(8) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the eleventh O site, O(11) is bonded to one Bi(1), one Bi(4), one Bi(6), and one Bi(8) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the twelfth O site, O(12) is bonded to one Bi(2), one Bi(6), one Bi(7), and one Bi(8) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the thirteenth O site, O(13) is bonded in a 2-coordinate geometry to two equivalent Bi(1) and two equivalent Bi(7) atoms. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to two equivalent Bi(4) and two equivalent Bi(6) atoms. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one Cr(1) atom. is represented by the CIF card [CIF]
data_Cr(Bi7O12)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.755
_cell_length_b   8.783
_cell_length_c   10.608
_cell_angle_alpha   65.805
_cell_angle_beta   65.887
_cell_angle_gamma   90.569
_symmetry_Int_Tables_number   1
_cell_volume   663.517
_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
  Cr  Cr0  1  0.994  0.994  0.012  1.0
  Bi  Bi1  1  0.443  0.216  0.999  1.0
  Bi  Bi2  1  0.939  0.125  0.336  1.0
  Bi  Bi3  1  0.463  0.061  0.662  1.0
  Bi  Bi4  1  0.792  0.435  0.004  1.0
  Bi  Bi5  1  0.340  0.340  0.320  1.0
  Bi  Bi6  1  0.204  0.561  0.004  1.0
  Bi  Bi7  1  0.875  0.278  0.662  1.0
  Bi  Bi8  1  0.725  0.539  0.336  1.0
  Bi  Bi9  1  0.557  0.784  0.999  1.0
  Bi  Bi10  1  0.277  0.464  0.663  1.0
  Bi  Bi11  1  0.124  0.721  0.338  1.0
  Bi  Bi12  1  0.659  0.659  0.682  1.0
  Bi  Bi13  1  0.538  0.941  0.338  1.0
  Bi  Bi14  1  0.059  0.873  0.663  1.0
  O  O15  1  0.904  0.162  0.042  1.0
  O  O16  1  0.334  0.008  0.493  1.0
  O  O17  1  0.543  0.239  0.158  1.0
  O  O18  1  0.235  0.294  0.160  1.0
  O  O19  1  0.006  0.174  0.494  1.0
  O  O20  1  0.095  0.095  0.810  1.0
  O  O21  1  0.618  0.118  0.764  1.0
  O  O22  1  0.881  0.381  0.237  1.0
  O  O23  1  0.500  0.333  0.494  1.0
  O  O24  1  0.605  0.546  0.160  1.0
  O  O25  1  0.299  0.603  0.158  1.0
  O  O26  1  0.828  0.500  0.508  1.0
  O  O27  1  0.172  0.499  0.493  1.0
  O  O28  1  0.703  0.394  0.844  1.0
  O  O29  1  0.053  0.795  0.042  1.0
  O  O30  1  0.397  0.454  0.840  1.0
  O  O31  1  0.500  0.667  0.506  1.0
  O  O32  1  0.382  0.882  0.235  1.0
  O  O33  1  0.119  0.619  0.763  1.0
  O  O34  1  0.883  0.883  0.234  1.0
  O  O35  1  0.994  0.827  0.506  1.0
  O  O36  1  0.763  0.705  0.840  1.0
  O  O37  1  0.453  0.762  0.844  1.0
  O  O38  1  0.664  0.993  0.508  1.0
[/CIF]
.
The material described by Bi14CrO24 crystallizes in the monoclinic C2 space group. Cr(1) is bonded in a square co-planar geometry to one O(15), one O(6), and two equivalent O(1) atoms. There are eight 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(13), one O(3), one O(4), and one O(7) atom. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(12), one O(4), one O(5), one O(8), and one O(9) atom. In the third Bi site, Bi(3) is bonded to one O(10), one O(2), one O(5), one O(7), and one O(9) atom to form distorted corner-sharing BiO5 square pyramids. In the fourth Bi site, Bi(4) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(11), one O(14), one O(3), one O(4), and one O(8) atom. In the fifth Bi site, Bi(5) is bonded in a distorted body-centered cubic geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. In the sixth Bi site, Bi(6) is bonded to one O(11), one O(12), one O(14), one O(2), and one O(5) atom to form distorted corner-sharing BiO5 square pyramids. In the seventh Bi site, Bi(7) is bonded in a 5-coordinate geometry to one O(12), one O(13), one O(2), one O(3), and one O(9) atom. In the eighth Bi site, Bi(8) is bonded in a distorted body-centered cubic geometry to two equivalent O(10), two equivalent O(11), two equivalent O(12), and two equivalent O(9) atoms. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Cr(1) and one Bi(4) atom. In the second O site, O(2) is bonded to one Bi(3), one Bi(5), one Bi(6), and one Bi(7) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the third O site, O(3) is bonded to one Bi(1), one Bi(4), one Bi(5), and one Bi(7) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the fourth O site, O(4) is bonded to one Bi(1), one Bi(2), one Bi(4), and one Bi(5) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the fifth O site, O(5) is bonded to one Bi(2), one Bi(3), one Bi(5), and one Bi(6) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the sixth O site, O(6) is bonded in a single-bond geometry to one Cr(1) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to two equivalent Bi(1) and two equivalent Bi(3) atoms. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to two equivalent Bi(2) and two equivalent Bi(4) atoms. In the ninth O site, O(9) is bonded to one Bi(2), one Bi(3), one Bi(7), and one Bi(8) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the tenth O site, O(10) is bonded to one Bi(1), one Bi(3), one Bi(4), and one Bi(8) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the eleventh O site, O(11) is bonded to one Bi(1), one Bi(4), one Bi(6), and one Bi(8) atom to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the twelfth O site, O(12) is bonded to one Bi(2), one Bi(6), one Bi(7), and one Bi(8) atom to form a mixture of distorted corner and edge-sharing OBi4 tetrahedra. In the thirteenth O site, O(13) is bonded in a 2-coordinate geometry to two equivalent Bi(1) and two equivalent Bi(7) atoms. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to two equivalent Bi(4) and two equivalent Bi(6) atoms. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one Cr(1) atom. is represented by the CIF card [CIF]
data_Cr(Bi7O12)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.755
_cell_length_b   8.783
_cell_length_c   10.608
_cell_angle_alpha   65.805
_cell_angle_beta   65.887
_cell_angle_gamma   90.569
_symmetry_Int_Tables_number   1
_cell_volume   663.517
_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
  Cr  Cr0  1  0.994  0.994  0.012  1.0
  Bi  Bi1  1  0.443  0.216  0.999  1.0
  Bi  Bi2  1  0.939  0.125  0.336  1.0
  Bi  Bi3  1  0.463  0.061  0.662  1.0
  Bi  Bi4  1  0.792  0.435  0.004  1.0
  Bi  Bi5  1  0.340  0.340  0.320  1.0
  Bi  Bi6  1  0.204  0.561  0.004  1.0
  Bi  Bi7  1  0.875  0.278  0.662  1.0
  Bi  Bi8  1  0.725  0.539  0.336  1.0
  Bi  Bi9  1  0.557  0.784  0.999  1.0
  Bi  Bi10  1  0.277  0.464  0.663  1.0
  Bi  Bi11  1  0.124  0.721  0.338  1.0
  Bi  Bi12  1  0.659  0.659  0.682  1.0
  Bi  Bi13  1  0.538  0.941  0.338  1.0
  Bi  Bi14  1  0.059  0.873  0.663  1.0
  O  O15  1  0.904  0.162  0.042  1.0
  O  O16  1  0.334  0.008  0.493  1.0
  O  O17  1  0.543  0.239  0.158  1.0
  O  O18  1  0.235  0.294  0.160  1.0
  O  O19  1  0.006  0.174  0.494  1.0
  O  O20  1  0.095  0.095  0.810  1.0
  O  O21  1  0.618  0.118  0.764  1.0
  O  O22  1  0.881  0.381  0.237  1.0
  O  O23  1  0.500  0.333  0.494  1.0
  O  O24  1  0.605  0.546  0.160  1.0
  O  O25  1  0.299  0.603  0.158  1.0
  O  O26  1  0.828  0.500  0.508  1.0
  O  O27  1  0.172  0.499  0.493  1.0
  O  O28  1  0.703  0.394  0.844  1.0
  O  O29  1  0.053  0.795  0.042  1.0
  O  O30  1  0.397  0.454  0.840  1.0
  O  O31  1  0.500  0.667  0.506  1.0
  O  O32  1  0.382  0.882  0.235  1.0
  O  O33  1  0.119  0.619  0.763  1.0
  O  O34  1  0.883  0.883  0.234  1.0
  O  O35  1  0.994  0.827  0.506  1.0
  O  O36  1  0.763  0.705  0.840  1.0
  O  O37  1  0.453  0.762  0.844  1.0
  O  O38  1  0.664  0.993  0.508  1.0
[/CIF]
.