data_global
_amcsd_formula_title 'Br2 Hg'
loop_
_publ_author_name
'Braekken H'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 81 
_journal_year 1932
_journal_page_first 152
_journal_page_last 154
_publ_section_title
;
 Zur Kristallstruktur des Quecksilberbromids Hg Br2
 _cod_database_code 1010470
;
_database_code_amcsd 0017387
_chemical_formula_sum 'Hg Br2'
_cell_length_a 4.624
_cell_length_b 6.789
_cell_length_c 12.445
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 390.678
_exptl_crystal_density_diffrn      6.127
_symmetry_space_group_name_H-M 'C m c 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,z'
  '1/2-x,1/2+y,z'
  '-x,-y,1/2+z'
  '1/2-x,1/2-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Hg1   0.00000   0.33300   0.00000
Br1   0.00000   0.06100   0.13400
Br2   0.00000   0.39500   0.36600