data_[Tb4Pm2Ho8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  Ho  1.2300  1.7500  1.0410
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.6501]
_cell_length_b [3.5237]
_cell_length_c [8.7338]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.5392]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb2PmHo4]
_chemical_formula_sum '[Tb4 Pm2 Ho8]'
_cell_volume [445.8089]
_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
[
  Tb  Tb0  4  0.0699  0.0000  0.4295  1
  Pm  Pm1  2  0.0000  0.0000  0.0000  1
  Ho  Ho2  4  0.1431  0.5000  0.8366  1
  Ho  Ho3  4  0.2055  0.5000  0.2940  1
]