data_[Pm8Zn8Ir4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Zn  1.6500  1.3500  0.8800
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.7576]
_cell_length_b [4.0334]
_cell_length_c [11.2075]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.2427]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm2Zn2Ir]
_chemical_formula_sum '[Pm8 Zn8 Ir4]'
_cell_volume [453.2533]
_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  0.0053  0.5000  0.3387  1
  Pm  Pm1  4  0.1954  0.5000  0.1245  1
  Zn  Zn2  4  0.0230  0.0000  0.8913  1
  Zn  Zn3  4  0.1701  0.0000  0.5493  1
  Ir  Ir4  4  0.2003  0.0000  0.3137  1
]