data_ZnCdHg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.06
_cell_length_b   9.06
_cell_length_c   9.06
_cell_angle_alpha   21.94
_cell_angle_beta   21.94
_cell_angle_gamma   21.94
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnCdHg2
_chemical_formula_sum   'Zn1 Cd1 Hg2'
_cell_volume   91.08
_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
  Zn  Zn3  1  0.0  0.0  0.0  1.0
  Cd  Cd0  1  0.0  0.0  0.26  1.0
  Hg  Hg1  1  0.0  0.0  0.79  1.0
  Hg  Hg2  1  0.0  0.0  0.73  1.0

data_ZnCdHg2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.97
_cell_length_b   3.45
_cell_length_c   9.06
_cell_angle_alpha   90.0
_cell_angle_beta   102.69
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZnCdHg2
_chemical_formula_sum   'Zn2 Cd2 Hg4'
_cell_volume   182.17
_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
  Zn  Zn0  2  0.0  0.0  0.0  1.0
  Cd  Cd1  2  0.0  0.0  0.74  1.0
  Hg  Hg2  2  0.0  0.0  0.21  1.0
  Hg  Hg3  2  0.0  0.0  0.27  1.0

Zn Cd Hg Hg
Zn Cd Hg Hg 0 2 o o - 0 1 o o o 2 3 o o o 