data_[Pm12Ho4Tm8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ho  1.2300  1.7500  1.0410
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.0980]
_cell_length_b [3.5914]
_cell_length_c [16.9540]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.5787]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3HoTm2]
_chemical_formula_sum '[Pm12 Ho4 Tm8]'
_cell_volume [783.9723]
_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  0.0207  0.0000  0.1719  1
  Pm  Pm1  4  0.0528  0.5000  0.6491  1
  Pm  Pm2  4  0.1351  0.5000  0.0127  1
  Ho  Ho3  4  0.2063  0.5000  0.3230  1
  Tm  Tm4  4  0.1343  0.0000  0.4869  1
  Tm  Tm5  4  0.2126  0.5000  0.8304  1
]