data_[Pm16Sm4Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.5879]
_cell_length_b [21.1033]
_cell_length_c [6.5538]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Pm4SmAg]
_chemical_formula_sum '[Pm16 Sm4 Ag4]'
_cell_volume [772.8415]
_cell_formula_units_Z [4]
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
[
  Pm  Pm0  4  0.0000  0.0642  0.2097  1
  Pm  Pm1  4  0.0000  0.2525  0.0979  1
  Pm  Pm2  4  0.0000  0.3219  0.5693  1
  Pm  Pm3  4  0.0000  0.4655  0.3791  1
  Sm  Sm4  4  0.0000  0.1327  0.7081  1
  Ag  Ag5  4  0.0000  0.3942  0.9693  1
]