data_[Sr2Mg2Cd4Hg10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Mg  1.3100  1.5000  0.8600
  Cd  1.6900  1.5500  1.0900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.2682]
_cell_length_b [6.5537]
_cell_length_c [15.2636]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [SrMgCd2Hg5]
_chemical_formula_sum '[Sr2 Mg2 Cd4 Hg10]'
_cell_volume [526.9912]
_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  0.5000  0.0000  1
  Mg  Mg1  2  0.0000  0.5000  0.5000  1
  Cd  Cd2  4  0.0000  0.0000  0.1872  1
  Hg  Hg3  8  0.0000  0.2324  0.3522  1
  Hg  Hg4  2  0.0000  0.0000  0.0000  1
]