data_[Na4Sm2Ag2Sb4]
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
  Ag  1.9300  1.6000  1.0867
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.5908]
_cell_length_b [9.1559]
_cell_length_c [7.7327]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Na2SmAgSb2]
_chemical_formula_sum '[Na4 Sm2 Ag2 Sb4]'
_cell_volume [325.0301]
_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  0.1648  0.3627  1.0
  Na  Na1  2  0.5000  0.0716  0.0415  1.0
  Sm  Sm2  2  0.0000  0.4452  0.9754  1.0
  Ag  Ag3  2  0.5000  0.3179  0.6428  1.0
  Sb  Sb4  2  0.0000  0.1629  0.7617  1.0
  Sb  Sb5  2  0.5000  0.3826  0.2615  1.0
]