data_[Pm3Sm1Ag4]
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 [P4/mmm]
_cell_length_a [3.7255]
_cell_length_b [3.7255]
_cell_length_c [14.9015]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [Pm3SmAg4]
_chemical_formula_sum '[Pm3 Sm1 Ag4]'
_cell_volume [206.8284]
_cell_formula_units_Z [1]
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  0.5000  0.5000  0.2492  1
  Pm  Pm1  1  0.5000  0.5000  0.5000  1
  Sm  Sm2  1  0.5000  0.5000  0.0000  1
  Ag  Ag3  2  0.0000  0.0000  0.1230  1
  Ag  Ag4  2  0.0000  0.0000  0.3748  1
]