data_global
_chemical_name_mineral 'Bismoclite'
loop_
_publ_author_name
'Bannister F'
_journal_name_full 'Nature'
_journal_volume 134 
_journal_year 1934
_journal_page_first 856
_journal_page_last 857
_publ_section_title
;
 Crystal structure of bismuth oxyhalides
 _cod_database_code 1011175
;
_database_code_amcsd 0018052
_chemical_formula_sum 'Bi O Cl'
_cell_length_a 3.89
_cell_length_b 3.89
_cell_length_c 7.37
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 111.524
_exptl_crystal_density_diffrn      7.755
_symmetry_space_group_name_H-M 'P 4/n m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2-y,1/2-x,z'
  'y,x,-z'
  'y,-x,-z'
  '1/2-y,1/2+x,z'
  'x,-y,z'
  '1/2-x,1/2+y,-z'
  '1/2+x,1/2+y,-z'
  '-x,-y,z'
  '1/2+y,1/2+x,z'
  '-y,-x,-z'
  '-y,x,-z'
  '1/2+y,1/2-x,z'
  '-x,y,z'
  '1/2+x,1/2-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Bi1   0.00000   0.50000   0.17100
O1   0.00000   0.00000   0.00000
Cl1   0.00000   0.50000   0.65000