data_[Na6Bi3H3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Bi  2.0200  1.6000  1.0350
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [3.5748]
_cell_length_b [3.5748]
_cell_length_c [24.1334]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Na2BiH]
_chemical_formula_sum '[Na6 Bi3 H3]'
_cell_volume [267.0878]
_cell_formula_units_Z [3]
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  6  0.0000  0.0000  0.2765  1.0
  Bi  Bi1  3  -0.0000  -0.0000  0.5000  1.0
  H  H2  3  0.0000  0.0000  0.0000  1.0
]