data_[Pm12Gd4Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Gd  1.2000  1.8000  1.0750
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [5.5383]
_cell_length_b [30.7343]
_cell_length_c [3.6373]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Pm3GdAg]
_chemical_formula_sum '[Pm12 Gd4 Ag4]'
_cell_volume [619.1323]
_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  0.0549  0.5000  1
  Pm  Pm1  4  0.0000  0.2257  0.0000  1
  Pm  Pm2  4  0.0000  0.4421  0.0000  1
  Gd  Gd3  4  0.0000  0.3373  0.5000  1
  Ag  Ag4  4  0.0000  0.1313  0.0000  1
]