data_[Na4Sm2Zn2Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sm  1.1700  1.8500  1.2290
  Zn  1.6500  1.3500  0.8800
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.9010]
_cell_length_b [9.3163]
_cell_length_c [7.4882]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Na2SmZnBi2]
_chemical_formula_sum '[Na4 Sm2 Zn2 Bi4]'
_cell_volume [341.9076]
_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  0.1467  0.3236  1.0
  Na  Na1  2  0.5000  0.0597  0.0181  1.0
  Sm  Sm2  2  0.0000  0.4835  0.0078  1.0
  Zn  Zn3  2  0.5000  0.3368  0.6744  1.0
  Bi  Bi4  2  0.0000  0.1924  0.7559  1.0
  Bi  Bi5  2  0.5000  0.3564  0.2658  1.0
]