data_ZnHgGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.54
_cell_length_b   7.28
_cell_length_c   3.09
_cell_angle_alpha   82.85
_cell_angle_beta   73.2
_cell_angle_gamma   23.96
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnHgGe
_chemical_formula_sum   'Zn1 Hg1 Ge1'
_cell_volume   61.48
_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  Zn2  1  0.67  0.59  0.8  1.0
  Hg  Hg1  1  0.67  0.59  0.54  1.0
  Ge  Ge0  1  0.67  0.59  1.0  1.0

data_ZnHgGe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.35
_cell_length_b   14.17
_cell_length_c   3.09
_cell_angle_alpha   90.0
_cell_angle_beta   122.81
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZnHgGe
_chemical_formula_sum   'Zn2 Hg2 Ge2'
_cell_volume   122.97
_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  0.43  0.5  0.53  1.0
  Hg  Hg1  2  0.2  0.0  0.79  1.0
  Ge  Ge2  2  0.24  0.5  0.33  1.0

Zn Hg Ge