data_[Pm8Al2I10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Al  1.6100  1.2500  0.6750
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.6934]
_cell_length_b [4.2948]
_cell_length_c [9.1240]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.5382]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm4AlI5]
_chemical_formula_sum '[Pm8 Al2 I10]'
_cell_volume [753.2967]
_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  0.0000  0.0000  0.2241  1
  Pm  Pm1  4  0.1500  0.5000  0.0764  1
  Al  Al2  2  0.0000  0.5000  0.0000  1
  I  I3  4  0.1670  0.0000  0.3373  1
  I  I4  4  0.1721  0.0000  0.8286  1
  I  I5  2  0.0000  0.5000  0.5000  1
]