data_[Na2Mg4Cd2Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  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 [Pmc2_1]
_cell_length_a [4.8347]
_cell_length_b [9.1612]
_cell_length_c [6.3436]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [NaMg2CdHg2]
_chemical_formula_sum '[Na2 Mg4 Cd2 Hg4]'
_cell_volume [280.9733]
_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
[
  Na  Na0  2  0.0000  0.4554  0.9504  1.0
  Mg  Mg1  2  0.0000  0.1929  0.3460  1.0
  Mg  Mg2  2  0.5000  0.0414  0.0519  1.0
  Cd  Cd3  2  0.5000  0.3071  0.6832  1.0
  Hg  Hg4  2  0.0000  0.1131  0.7956  1.0
  Hg  Hg5  2  0.5000  0.3540  0.2184  1.0
]