data_[Na4Hg2Pb5]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [8.4977]
_cell_length_b [3.4870]
_cell_length_c [10.8432]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.4693]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na4Hg2Pb5]
_chemical_formula_sum '[Na4 Hg2 Pb5]'
_cell_volume [319.8394]
_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  0.1680  0.5000  0.8865  1.0
  Na  Na1  2  0.2694  0.5000  0.4401  1.0
  Hg  Hg2  2  0.0649  0.0000  0.6357  1.0
  Pb  Pb3  2  0.1944  0.0000  0.1694  1.0
  Pb  Pb4  2  0.4453  0.0000  0.7005  1.0
  Pb  Pb5  1  0.5000  0.0000  0.0000  1.0
]