data_[Na4Sn10Hg24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.2016]
_cell_length_b [10.5255]
_cell_length_c [8.4309]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.0622]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Sn5Hg12]
_chemical_formula_sum '[Na4 Sn10 Hg24]'
_cell_volume [1017.0656]
_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  4  0.0000  0.2446  0.0000  1
  Sn  Sn1  4  0.1763  0.0000  0.2962  1
  Sn  Sn2  4  0.1965  0.5000  0.3006  1
  Sn  Sn3  2  0.0000  0.0000  0.5000  1
  Hg  Hg4  8  0.0899  0.2711  0.4045  1
  Hg  Hg5  8  0.1985  0.2611  0.8024  1
  Hg  Hg6  4  0.0862  0.5000  0.8824  1
  Hg  Hg7  4  0.1117  0.0000  0.8999  1
]