data_[Na4Hg5Sb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Hg  2.0000  1.5000  1.2450
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [8.3305]
_cell_length_b [3.3411]
_cell_length_c [10.6529]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.0585]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na4Hg5Sb2]
_chemical_formula_sum '[Na4 Hg5 Sb2]'
_cell_volume [294.2517]
_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  2  0.1760  0.5000  0.8965  1
  Na  Na1  2  0.2847  0.5000  0.4390  1
  Hg  Hg2  2  0.1802  0.0000  0.1514  1
  Hg  Hg3  2  0.4611  0.0000  0.7017  1
  Hg  Hg4  1  0.5000  0.0000  0.0000  1
  Sb  Sb5  2  0.0673  0.0000  0.6341  1
]