data_[Pm8H20Rh8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  H  2.2000  0.2500  0.0000
  Rh  2.2800  1.3500  0.7450
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [5.2012]
_cell_length_b [14.8850]
_cell_length_c [5.2098]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Pm2H5Rh2]
_chemical_formula_sum '[Pm8 H20 Rh8]'
_cell_volume [403.3393]
_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  8  0.0000  0.1297  0.0002  1
  H  H1  8  0.0000  0.1266  0.5116  1
  H  H2  8  0.2500  0.0017  0.7500  1
  H  H3  4  0.2500  0.2500  0.2500  1
  Rh  Rh4  4  0.0000  0.0000  0.5000  1
  Rh  Rh5  4  0.0000  0.2500  0.5238  1
]