data_[Na2Li16Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Li  0.9800  1.4500  0.9000
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.8282]
_cell_length_b [4.8017]
_cell_length_c [7.9643]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.6428]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na(Li4Bi)2]
_chemical_formula_sum '[Na2 Li16 Bi4]'
_cell_volume [482.7564]
_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  0.0000  0.5000  0.0000  1.0
  Li  Li1  4  0.0202  0.0000  0.3424  1.0
  Li  Li2  4  0.1365  0.5000  0.8137  1.0
  Li  Li3  4  0.1551  0.0000  0.0819  1.0
  Li  Li4  4  0.1823  0.5000  0.4886  1.0
  Bi  Bi5  4  0.2068  0.0000  0.7295  1.0
]