data_[Pm2Y4Ag12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Y  1.2200  1.8000  1.0400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.3428]
_cell_length_b [16.2848]
_cell_length_c [5.3708]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.7809]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm(YAg3)2]
_chemical_formula_sum '[Pm2 Y4 Ag12]'
_cell_volume [405.5796]
_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
[
  Pm  Pm0  2  0.0000  0.0000  0.0000  1
  Y  Y1  4  0.0000  0.3345  0.5000  1
  Ag  Ag2  8  0.1714  0.1679  0.8346  1
  Ag  Ag3  4  0.1608  0.5000  0.3242  1
]