data_KReHg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.87
_cell_length_b   10.87
_cell_length_c   10.87
_cell_angle_alpha   16.03
_cell_angle_beta   16.03
_cell_angle_gamma   16.03
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KReHg2
_chemical_formula_sum   'K1 Re1 Hg2'
_cell_volume   85.4
_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
  K  K2  1  0.0  0.0  0.0  1.0
  Re  Re3  1  0.0  0.0  0.1  1.0
  Hg  Hg0  1  0.0  0.0  0.78  1.0
  Hg  Hg1  1  0.0  0.0  0.42  1.0

data_KReHg2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.25
_cell_length_b   3.03
_cell_length_c   10.87
_cell_angle_alpha   90.0
_cell_angle_beta   99.26
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KReHg2
_chemical_formula_sum   'K2 Re2 Hg4'
_cell_volume   170.81
_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
  K  K0  2  0.0  0.0  0.0  1.0
  Re  Re1  2  0.0  0.0  0.9  1.0
  Hg  Hg2  2  0.0  0.0  0.58  1.0
  Hg  Hg3  2  0.0  0.0  0.22  1.0

K Re Hg Hg