data_[Sr2Cd4Hg8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Cd  1.6900  1.5500  1.0900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.4943]
_cell_length_b [7.6462]
_cell_length_c [5.9391]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.8091]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr(CdHg2)2]
_chemical_formula_sum '[Sr2 Cd4 Hg8]'
_cell_volume [374.1001]
_cell_formula_units_Z [2]
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
[
  Sr  Sr0  2  0.0000  0.0000  0.0000  1.0
  Cd  Cd1  4  0.0201  0.5000  0.7722  1.0
  Hg  Hg2  8  0.1929  0.1964  0.6901  1.0
]