The crystal structure described by ZnBi2O4 crystallizes in the orthorhombic Pnma space group. Zn(1) is bonded to one O(2), two equivalent O(3), and two equivalent O(4) atoms to form ZnO5 square pyramids that share corners with six equivalent Bi(1)O5 square pyramids,  an edgeedge with one Bi(1)O5 square pyramid, and edges with two equivalent Zn(1)O5 square pyramids. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted BiO5 square pyramids that share corners with six equivalent Zn(1)O5 square pyramids,  an edgeedge with one Zn(1)O5 square pyramid, and edges with two equivalent Bi(1)O5 square pyramids. In the second Bi site, Bi(2) is bonded in a 4-coordinate geometry to one O(2) and three equivalent O(1) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to three equivalent Bi(2) atoms. In the second O site, O(2) is bonded to one Zn(1), one Bi(2), and two equivalent Bi(1) atoms to form distorted corner-sharing OZnBi3 tetrahedra. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Zn(1) and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Zn(1) and one Bi(1) atom. is represented by the CIF card [CIF]
data_Zn(BiO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.383
_cell_length_b   11.069
_cell_length_c   11.427
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   427.878
_cell_formula_units_Z   4
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  0.250  0.198  0.138  1.0
  Zn  Zn1  1  0.750  0.802  0.862  1.0
  Zn  Zn2  1  0.250  0.698  0.362  1.0
  Zn  Zn3  1  0.750  0.302  0.638  1.0
  Bi  Bi4  1  0.750  0.405  0.371  1.0
  Bi  Bi5  1  0.250  0.095  0.871  1.0
  Bi  Bi6  1  0.750  0.905  0.129  1.0
  Bi  Bi7  1  0.250  0.595  0.629  1.0
  Bi  Bi8  1  0.250  0.595  0.104  1.0
  Bi  Bi9  1  0.750  0.405  0.896  1.0
  Bi  Bi10  1  0.250  0.095  0.396  1.0
  Bi  Bi11  1  0.750  0.905  0.604  1.0
  O  O12  1  0.750  0.969  0.408  1.0
  O  O13  1  0.250  0.031  0.592  1.0
  O  O14  1  0.750  0.469  0.092  1.0
  O  O15  1  0.250  0.531  0.908  1.0
  O  O16  1  0.750  0.978  0.795  1.0
  O  O17  1  0.250  0.022  0.205  1.0
  O  O18  1  0.750  0.478  0.705  1.0
  O  O19  1  0.250  0.522  0.295  1.0
  O  O20  1  0.750  0.678  0.480  1.0
  O  O21  1  0.250  0.322  0.520  1.0
  O  O22  1  0.750  0.178  0.020  1.0
  O  O23  1  0.250  0.822  0.980  1.0
  O  O24  1  0.250  0.754  0.742  1.0
  O  O25  1  0.750  0.246  0.258  1.0
  O  O26  1  0.750  0.746  0.242  1.0
  O  O27  1  0.250  0.254  0.758  1.0
[/CIF]
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The crystal structure described by ZnBi2O4 crystallizes in the orthorhombic Pnma space group. Zn(1) is bonded to one O(2), two equivalent O(3), and two equivalent O(4) atoms to form ZnO5 square pyramids that share corners with six equivalent Bi(1)O5 square pyramids,  an edgeedge with one Bi(1)O5 square pyramid, and edges with two equivalent Zn(1)O5 square pyramids. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted BiO5 square pyramids that share corners with six equivalent Zn(1)O5 square pyramids,  an edgeedge with one Zn(1)O5 square pyramid, and edges with two equivalent Bi(1)O5 square pyramids. In the second Bi site, Bi(2) is bonded in a 4-coordinate geometry to one O(2) and three equivalent O(1) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to three equivalent Bi(2) atoms. In the second O site, O(2) is bonded to one Zn(1), one Bi(2), and two equivalent Bi(1) atoms to form distorted corner-sharing OZnBi3 tetrahedra. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Zn(1) and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Zn(1) and one Bi(1) atom. is represented by the CIF card [CIF]
data_Zn(BiO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.383
_cell_length_b   11.069
_cell_length_c   11.427
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   427.878
_cell_formula_units_Z   4
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  0.250  0.198  0.138  1.0
  Zn  Zn1  1  0.750  0.802  0.862  1.0
  Zn  Zn2  1  0.250  0.698  0.362  1.0
  Zn  Zn3  1  0.750  0.302  0.638  1.0
  Bi  Bi4  1  0.750  0.405  0.371  1.0
  Bi  Bi5  1  0.250  0.095  0.871  1.0
  Bi  Bi6  1  0.750  0.905  0.129  1.0
  Bi  Bi7  1  0.250  0.595  0.629  1.0
  Bi  Bi8  1  0.250  0.595  0.104  1.0
  Bi  Bi9  1  0.750  0.405  0.896  1.0
  Bi  Bi10  1  0.250  0.095  0.396  1.0
  Bi  Bi11  1  0.750  0.905  0.604  1.0
  O  O12  1  0.750  0.969  0.408  1.0
  O  O13  1  0.250  0.031  0.592  1.0
  O  O14  1  0.750  0.469  0.092  1.0
  O  O15  1  0.250  0.531  0.908  1.0
  O  O16  1  0.750  0.978  0.795  1.0
  O  O17  1  0.250  0.022  0.205  1.0
  O  O18  1  0.750  0.478  0.705  1.0
  O  O19  1  0.250  0.522  0.295  1.0
  O  O20  1  0.750  0.678  0.480  1.0
  O  O21  1  0.250  0.322  0.520  1.0
  O  O22  1  0.750  0.178  0.020  1.0
  O  O23  1  0.250  0.822  0.980  1.0
  O  O24  1  0.250  0.754  0.742  1.0
  O  O25  1  0.750  0.246  0.258  1.0
  O  O26  1  0.750  0.746  0.242  1.0
  O  O27  1  0.250  0.254  0.758  1.0
[/CIF]
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