The crystal structure described by AuBi2O5 crystallizes in the tetragonal P4/ncc space group. Au(1) is bonded in a rectangular see-saw-like geometry to four equivalent O(1) atoms. Bi(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Au(1) and three equivalent Bi(1) atoms to form distorted OBi3Au tetrahedra that share corners with four equivalent O(2)Bi4 tetrahedra, corners with twelve equivalent O(1)Bi3Au tetrahedra,  an edgeedge with one O(2)Bi4 tetrahedra, and edges with three equivalent O(1)Bi3Au tetrahedra. In the second O site, O(2) is bonded to four equivalent Bi(1) atoms to form OBi4 tetrahedra that share corners with sixteen equivalent O(1)Bi3Au tetrahedra, edges with two equivalent O(2)Bi4 tetrahedra, and edges with four equivalent O(1)Bi3Au tetrahedra. is represented by the CIF file [CIF]
data_Bi2AuO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.652
_cell_length_b   8.652
_cell_length_c   5.765
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   431.549
_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
  Bi  Bi0  1  0.352  0.648  0.250  1.0
  Bi  Bi1  1  0.852  0.148  0.750  1.0
  Bi  Bi2  1  0.648  0.648  0.750  1.0
  Bi  Bi3  1  0.648  0.352  0.250  1.0
  Bi  Bi4  1  0.852  0.852  0.250  1.0
  Bi  Bi5  1  0.148  0.852  0.750  1.0
  Bi  Bi6  1  0.352  0.352  0.750  1.0
  Bi  Bi7  1  0.148  0.148  0.250  1.0
  Au  Au8  1  0.500  0.000  0.399  1.0
  Au  Au9  1  0.500  0.000  0.899  1.0
  Au  Au10  1  0.000  0.500  0.101  1.0
  Au  Au11  1  0.000  0.500  0.601  1.0
  O  O12  1  0.080  0.285  0.615  1.0
  O  O13  1  0.920  0.285  0.115  1.0
  O  O14  1  0.920  0.715  0.615  1.0
  O  O15  1  0.715  0.920  0.885  1.0
  O  O16  1  0.215  0.580  0.615  1.0
  O  O17  1  0.420  0.785  0.885  1.0
  O  O18  1  0.420  0.215  0.385  1.0
  O  O19  1  0.785  0.580  0.115  1.0
  O  O20  1  0.285  0.920  0.385  1.0
  O  O21  1  0.580  0.215  0.885  1.0
  O  O22  1  0.500  0.500  0.000  1.0
  O  O23  1  0.500  0.500  0.500  1.0
  O  O24  1  0.785  0.420  0.615  1.0
  O  O25  1  0.080  0.715  0.115  1.0
  O  O26  1  0.285  0.080  0.885  1.0
  O  O27  1  0.580  0.785  0.385  1.0
  O  O28  1  0.215  0.420  0.115  1.0
  O  O29  1  0.000  0.000  0.000  1.0
  O  O30  1  0.000  0.000  0.500  1.0
  O  O31  1  0.715  0.080  0.385  1.0
[/CIF]
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The crystal structure described by AuBi2O5 crystallizes in the tetragonal P4/ncc space group. Au(1) is bonded in a rectangular see-saw-like geometry to four equivalent O(1) atoms. Bi(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Au(1) and three equivalent Bi(1) atoms to form distorted OBi3Au tetrahedra that share corners with four equivalent O(2)Bi4 tetrahedra, corners with twelve equivalent O(1)Bi3Au tetrahedra,  an edgeedge with one O(2)Bi4 tetrahedra, and edges with three equivalent O(1)Bi3Au tetrahedra. In the second O site, O(2) is bonded to four equivalent Bi(1) atoms to form OBi4 tetrahedra that share corners with sixteen equivalent O(1)Bi3Au tetrahedra, edges with two equivalent O(2)Bi4 tetrahedra, and edges with four equivalent O(1)Bi3Au tetrahedra. is represented by the CIF file [CIF]
data_Bi2AuO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.652
_cell_length_b   8.652
_cell_length_c   5.765
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   431.549
_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
  Bi  Bi0  1  0.352  0.648  0.250  1.0
  Bi  Bi1  1  0.852  0.148  0.750  1.0
  Bi  Bi2  1  0.648  0.648  0.750  1.0
  Bi  Bi3  1  0.648  0.352  0.250  1.0
  Bi  Bi4  1  0.852  0.852  0.250  1.0
  Bi  Bi5  1  0.148  0.852  0.750  1.0
  Bi  Bi6  1  0.352  0.352  0.750  1.0
  Bi  Bi7  1  0.148  0.148  0.250  1.0
  Au  Au8  1  0.500  0.000  0.399  1.0
  Au  Au9  1  0.500  0.000  0.899  1.0
  Au  Au10  1  0.000  0.500  0.101  1.0
  Au  Au11  1  0.000  0.500  0.601  1.0
  O  O12  1  0.080  0.285  0.615  1.0
  O  O13  1  0.920  0.285  0.115  1.0
  O  O14  1  0.920  0.715  0.615  1.0
  O  O15  1  0.715  0.920  0.885  1.0
  O  O16  1  0.215  0.580  0.615  1.0
  O  O17  1  0.420  0.785  0.885  1.0
  O  O18  1  0.420  0.215  0.385  1.0
  O  O19  1  0.785  0.580  0.115  1.0
  O  O20  1  0.285  0.920  0.385  1.0
  O  O21  1  0.580  0.215  0.885  1.0
  O  O22  1  0.500  0.500  0.000  1.0
  O  O23  1  0.500  0.500  0.500  1.0
  O  O24  1  0.785  0.420  0.615  1.0
  O  O25  1  0.080  0.715  0.115  1.0
  O  O26  1  0.285  0.080  0.885  1.0
  O  O27  1  0.580  0.785  0.385  1.0
  O  O28  1  0.215  0.420  0.115  1.0
  O  O29  1  0.000  0.000  0.000  1.0
  O  O30  1  0.000  0.000  0.500  1.0
  O  O31  1  0.715  0.080  0.385  1.0
[/CIF]
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