data_Hg2BiCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.56
_cell_length_b   3.56
_cell_length_c   10.37
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.27
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hg2BiCl
_chemical_formula_sum   'Hg2 Bi1 Cl1'
_cell_volume   113.53
_cell_formula_units_Z   1
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
  Hg  Hg2  1  0.77  0.0  0.07  1.0
  Hg  Hg3  1  0.0  0.0  0.8  1.0
  Bi  Bi0  1  0.77  0.0  0.97  1.0
  Cl  Cl1  1  0.0  0.0  0.72  1.0

data_Hg2BiCl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.56
_cell_length_b   6.15
_cell_length_c   10.37
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Hg2BiCl
_chemical_formula_sum   'Hg4 Bi2 Cl2'
_cell_volume   227.05
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Hg  Hg0  2  0.0  0.0  0.2  1.0
  Hg  Hg1  2  0.23  0.0  0.93  1.0
  Bi  Bi2  2  0.23  0.0  0.03  1.0
  Cl  Cl3  2  0.0  0.0  0.28  1.0

Hg Hg Bi Cl