data_[Na2Cd2Sn2Hg2]
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 [Cm]
_cell_length_a [9.8783]
_cell_length_b [3.3230]
_cell_length_c [7.7369]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.7578]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [NaCdSnHg]
_chemical_formula_sum '[Na2 Cd2 Sn2 Hg2]'
_cell_volume [208.6497]
_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  0.2733  0.0000  0.6673  1.0
  Cd  Cd1  2  0.0138  0.5000  0.1900  1.0
  Sn  Sn2  2  0.1693  0.5000  0.9465  1.0
  Hg  Hg3  2  0.4033  0.5000  0.4518  1.0
]