The structure described by ZnBi12O20 crystallizes in the cubic I23 space group. Zn(1) is bonded to four equivalent O(3) atoms to form ZnO4 tetrahedra that share corners with twelve equivalent Bi(1)O5 square pyramids. Bi(1) is bonded to one O(1), one O(3), and three equivalent O(2) atoms to form distorted BiO5 square pyramids that share corners with eight equivalent Bi(1)O5 square pyramids,  a cornercorner with one Zn(1)O4 tetrahedra, and  an edgeedge with one Bi(1)O5 square pyramid. There are three inequivalent O sites. In the first O site, O(3) is bonded to one Zn(1) and three equivalent Bi(1) atoms to form corner-sharing OZnBi3 tetrahedra. In the second O site, O(1) is bonded in a trigonal planar geometry to three equivalent Bi(1) atoms. In the third O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Bi(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn(Bi3O5)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.832
_cell_length_b   8.832
_cell_length_c   8.832
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   530.283
_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
  Zn  Zn0  1  0.000  0.000  0.000  1.0
  Bi  Bi1  1  0.833  0.692  0.511  1.0
  Bi  Bi2  1  0.141  0.819  0.308  1.0
  Bi  Bi3  1  0.322  0.489  0.181  1.0
  Bi  Bi4  1  0.489  0.181  0.322  1.0
  Bi  Bi5  1  0.678  0.859  0.167  1.0
  Bi  Bi6  1  0.511  0.833  0.692  1.0
  Bi  Bi7  1  0.692  0.511  0.833  1.0
  Bi  Bi8  1  0.308  0.141  0.819  1.0
  Bi  Bi9  1  0.859  0.167  0.678  1.0
  Bi  Bi10  1  0.181  0.322  0.489  1.0
  Bi  Bi11  1  0.167  0.678  0.859  1.0
  Bi  Bi12  1  0.819  0.308  0.141  1.0
  O  O13  1  0.000  0.000  0.621  1.0
  O  O14  1  0.000  0.621  0.000  1.0
  O  O15  1  0.379  0.379  0.379  1.0
  O  O16  1  0.621  0.000  0.000  1.0
  O  O17  1  0.358  0.239  0.620  1.0
  O  O18  1  0.119  0.381  0.761  1.0
  O  O19  1  0.739  0.380  0.619  1.0
  O  O20  1  0.380  0.619  0.739  1.0
  O  O21  1  0.261  0.881  0.642  1.0
  O  O22  1  0.620  0.358  0.239  1.0
  O  O23  1  0.239  0.620  0.358  1.0
  O  O24  1  0.761  0.119  0.381  1.0
  O  O25  1  0.881  0.642  0.261  1.0
  O  O26  1  0.619  0.739  0.380  1.0
  O  O27  1  0.642  0.261  0.881  1.0
  O  O28  1  0.381  0.761  0.119  1.0
  O  O29  1  0.000  0.000  0.230  1.0
  O  O30  1  0.000  0.230  0.000  1.0
  O  O31  1  0.770  0.770  0.770  1.0
  O  O32  1  0.230  0.000  0.000  1.0
[/CIF]
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The structure described by ZnBi12O20 crystallizes in the cubic I23 space group. Zn(1) is bonded to four equivalent O(3) atoms to form ZnO4 tetrahedra that share corners with twelve equivalent Bi(1)O5 square pyramids. Bi(1) is bonded to one O(1), one O(3), and three equivalent O(2) atoms to form distorted BiO5 square pyramids that share corners with eight equivalent Bi(1)O5 square pyramids,  a cornercorner with one Zn(1)O4 tetrahedra, and  an edgeedge with one Bi(1)O5 square pyramid. There are three inequivalent O sites. In the first O site, O(3) is bonded to one Zn(1) and three equivalent Bi(1) atoms to form corner-sharing OZnBi3 tetrahedra. In the second O site, O(1) is bonded in a trigonal planar geometry to three equivalent Bi(1) atoms. In the third O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Bi(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn(Bi3O5)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.832
_cell_length_b   8.832
_cell_length_c   8.832
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   530.283
_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
  Zn  Zn0  1  0.000  0.000  0.000  1.0
  Bi  Bi1  1  0.833  0.692  0.511  1.0
  Bi  Bi2  1  0.141  0.819  0.308  1.0
  Bi  Bi3  1  0.322  0.489  0.181  1.0
  Bi  Bi4  1  0.489  0.181  0.322  1.0
  Bi  Bi5  1  0.678  0.859  0.167  1.0
  Bi  Bi6  1  0.511  0.833  0.692  1.0
  Bi  Bi7  1  0.692  0.511  0.833  1.0
  Bi  Bi8  1  0.308  0.141  0.819  1.0
  Bi  Bi9  1  0.859  0.167  0.678  1.0
  Bi  Bi10  1  0.181  0.322  0.489  1.0
  Bi  Bi11  1  0.167  0.678  0.859  1.0
  Bi  Bi12  1  0.819  0.308  0.141  1.0
  O  O13  1  0.000  0.000  0.621  1.0
  O  O14  1  0.000  0.621  0.000  1.0
  O  O15  1  0.379  0.379  0.379  1.0
  O  O16  1  0.621  0.000  0.000  1.0
  O  O17  1  0.358  0.239  0.620  1.0
  O  O18  1  0.119  0.381  0.761  1.0
  O  O19  1  0.739  0.380  0.619  1.0
  O  O20  1  0.380  0.619  0.739  1.0
  O  O21  1  0.261  0.881  0.642  1.0
  O  O22  1  0.620  0.358  0.239  1.0
  O  O23  1  0.239  0.620  0.358  1.0
  O  O24  1  0.761  0.119  0.381  1.0
  O  O25  1  0.881  0.642  0.261  1.0
  O  O26  1  0.619  0.739  0.380  1.0
  O  O27  1  0.642  0.261  0.881  1.0
  O  O28  1  0.381  0.761  0.119  1.0
  O  O29  1  0.000  0.000  0.230  1.0
  O  O30  1  0.000  0.230  0.000  1.0
  O  O31  1  0.770  0.770  0.770  1.0
  O  O32  1  0.230  0.000  0.000  1.0
[/CIF]
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