data_[Sr3Cd18Hg24]
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 [R-3]
_cell_length_a [9.3159]
_cell_length_b [9.3159]
_cell_length_c [15.9193]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Sr(Cd3Hg4)2]
_chemical_formula_sum '[Sr3 Cd18 Hg24]'
_cell_volume [1196.4774]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.0000  1.0
  Cd  Cd1  18  0.0002  0.1996  0.3762  1.0
  Hg  Hg2  18  0.0024  0.3025  0.8749  1.0
  Hg  Hg3  6  0.0000  0.0000  0.2187  1.0
]