data_[Tb2Pm4Pr2Er2]
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
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [8.4110]
_cell_length_b [6.6020]
_cell_length_c [6.2512]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.9026]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [TbPm2PrEr]
_chemical_formula_sum '[Tb2 Pm4 Pr2 Er2]'
_cell_volume [346.3228]
_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  2  0.0000  0.4325  0.2500  1
  Pm  Pm1  4  0.3100  0.3094  0.7281  1
  Pr  Pr2  2  0.0000  0.0000  0.0000  1
  Er  Er3  2  0.5000  0.1626  0.2500  1
]