data_global
_amcsd_formula_title 'Bi4O7'
loop_
_publ_author_name
'Gattow G'
'Schutze D'
_journal_name_full 'Zeitschrift fur Anorganische und Allgemeine Chemie'
_journal_volume 328 
_journal_year 1964
_journal_page_first 44
_journal_page_last 68
_publ_section_title
;
 Uber wismutoxide. VI. Uber ein Wismut(III)-oxid mit hoherem
 sauerstoffgehalt (beta-modifikation)
;
_database_code_amcsd 0015773
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Bi O1.75'
_cell_length_a 15.50
_cell_length_b 15.50
_cell_length_c 5.64
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1355.010
_exptl_crystal_density_diffrn      4.647
_symmetry_space_group_name_H-M 'C -4 2 b'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  '1/2+y,x,z'
  '+y,1/2+x,z'
  '1/2-x,y,-z'
  '-x,1/2+y,-z'
  '1/2-y,-x,z'
  '-y,1/2-x,z'
  '1/2+x,-y,-z'
  '+x,1/2-y,-z'
  'y,-x,-z'
  '1/2+y,1/2-x,-z'
  '-x,-y,z'
  '1/2-x,1/2-y,z'
  '-y,x,-z'
  '1/2-y,1/2+x,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Bi   0.13500   0.11500   0.25000   1.00000
O1   0.02000   0.25000   0.00000   1.00000
O2   0.02000   0.25000   0.50000   1.00000
O3   0.25000   0.25000   0.00000   1.00000
O4   0.00000   0.00000   0.50000   1.00000
O5   0.25000   0.25000   0.50000   0.50000
O6   0.00000   0.00000   0.00000   0.50000