data_[Pm12Mg4Ag2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.4496]
_cell_length_b [9.7001]
_cell_length_c [10.1240]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.2301]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Pm6Mg2Ag]
_chemical_formula_sum '[Pm12 Mg4 Ag2]'
_cell_volume [563.1820]
_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  4  0.0746  0.5364  0.7003  1
  Pm  Pm1  4  0.1436  0.1922  0.5559  1
  Pm  Pm2  4  0.4257  0.6708  0.5262  1
  Mg  Mg3  4  0.3765  0.5928  0.2198  1
  Ag  Ag4  2  0.5000  0.0000  0.5000  1
]