data_[Pm8Ge12Ir8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ge  2.0100  1.2500  0.7700
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.2376]
_cell_length_b [18.2184]
_cell_length_c [7.1855]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pm2Ge3Ir2]
_chemical_formula_sum '[Pm8 Ge12 Ir8]'
_cell_volume [554.7400]
_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  0.0584  0.2500  1
  Pm  Pm1  4  0.0000  0.1563  0.7500  1
  Ge  Ge2  8  0.0000  0.4361  0.0657  1
  Ge  Ge3  4  0.0000  0.2252  0.2500  1
  Ir  Ir4  8  0.0000  0.3060  0.5518  1
]