data_[Na2Cd5Hg5]
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
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pmmm]
_cell_length_a [5.4950]
_cell_length_b [5.9224]
_cell_length_c [10.2540]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [47]
_chemical_formula_structural [Na2(CdHg)5]
_chemical_formula_sum '[Na2 Cd5 Hg5]'
_cell_volume [333.6964]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.5000  1.0
  Na  Na1  1  0.0000  0.5000  0.0000  1.0
  Cd  Cd2  4  0.5000  0.2494  0.2527  1.0
  Cd  Cd3  1  0.5000  0.5000  0.5000  1.0
  Hg  Hg4  2  0.0000  0.0000  0.1725  1.0
  Hg  Hg5  2  0.0000  0.5000  0.3323  1.0
  Hg  Hg6  1  0.5000  0.0000  0.0000  1.0
]