data_[Tb8Y2Er4Tm4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.5421]
_cell_length_b [3.5697]
_cell_length_c [9.4652]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.7934]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb4Y(ErTm)2]
_chemical_formula_sum '[Tb8 Y2 Er4 Tm4]'
_cell_volume [564.0886]
_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  0.0187  0.5000  0.3357  1
  Tb  Tb1  4  0.1855  0.0000  0.3333  1
  Y  Y2  2  0.0000  0.0000  0.0000  1
  Er  Er3  4  0.1485  0.0000  0.6687  1
  Tm  Tm4  4  0.1676  0.5000  0.9994  1
]