data_[Tb2Nd6Er4Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.0854]
_cell_length_b [12.3374]
_cell_length_c [7.3056]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.9920]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TbNd3(ErSe3)2]
_chemical_formula_sum '[Tb2 Nd6 Er4 Se12]'
_cell_volume [603.8618]
_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  0.0000  0.0000  1
  Nd  Nd1  4  0.0000  0.1643  0.5000  1
  Nd  Nd2  2  0.0000  0.5000  0.5000  1
  Er  Er3  4  0.0000  0.3337  0.0000  1
  Se  Se4  8  0.2464  0.1686  0.2342  1
  Se  Se5  4  0.2404  0.5000  0.2325  1
]