data_[Na2Cd4Sn2Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cd  1.6900  1.5500  1.0900
  Sn  1.9600  1.4500  0.8300
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.8110]
_cell_length_b [8.8052]
_cell_length_c [7.3935]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [NaCd2SnHg2]
_chemical_formula_sum '[Na2 Cd4 Sn2 Hg4]'
_cell_volume [313.2059]
_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  0.4164  0.9544  1.0
  Cd  Cd1  2  0.0000  0.2205  0.3653  1.0
  Cd  Cd2  2  0.5000  0.0910  0.0633  1.0
  Sn  Sn3  2  0.5000  0.2800  0.6418  1.0
  Hg  Hg4  2  0.0000  0.0959  0.7814  1.0
  Hg  Hg5  2  0.5000  0.3940  0.2394  1.0
]