data_global
_amcsd_formula_title 'Hg(Cl,Br)2'
loop_
_publ_author_name
'Wyckoff R W G'
_journal_name_full 'Crystal Structures'
_journal_volume 1 
_journal_year 1963
_journal_page_first 308
_journal_page_last 309
_publ_section_title
;
 Second edition. Interscience Publishers, New York, New York
;
_database_code_amcsd 0011893
_chemical_formula_sum 'Hg (Cl Br)'
_cell_length_a 4.10
_cell_length_b 13.17
_cell_length_c 6.78
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 366.100
_exptl_crystal_density_diffrn      5.732
_symmetry_space_group_name_H-M 'P 21 21 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,1/2+y,1/2-z'
  '1/2+x,1/2-y,-z'
  '1/2-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Hg   0.05600   0.37200   0.08600   1.00000
Cl1   0.41800   0.50000   0.00000   0.50000
Br1   0.41800   0.50000   0.00000   0.50000
Cl2   0.80500   0.72800   0.83300   0.50000
Br2   0.80500   0.72800   0.83300   0.50000