data_[Tb2Ce1Pm9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ce  1.1200  1.8500  1.0800
  Pm  1.1300  1.8500  1.1100
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [5.1266]
_cell_length_b [5.1266]
_cell_length_c [15.3836]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [Tb2CePm9]
_chemical_formula_sum '[Tb2 Ce1 Pm9]'
_cell_volume [404.3077]
_cell_formula_units_Z [1]
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  2  0.0000  0.0000  0.3329  1
  Ce  Ce1  1  0.0000  0.0000  0.0000  1
  Pm  Pm2  4  0.0000  0.5000  0.1652  1
  Pm  Pm3  2  0.0000  0.5000  0.5000  1
  Pm  Pm4  2  0.5000  0.5000  0.3343  1
  Pm  Pm5  1  0.5000  0.5000  0.0000  1
]