data_[Ac2Tb14Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [8.8375]
_cell_length_b [15.8438]
_cell_length_c [5.7631]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [AcTb7Er2]
_chemical_formula_sum '[Ac2 Tb14 Er4]'
_cell_volume [806.9515]
_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  8  0.1785  0.1204  0.5000  1
  Tb  Tb1  4  0.0000  0.2317  0.0000  1
  Ac  Ac2  2  0.0000  0.0000  0.0000  1
  Tb  Tb3  2  0.0000  0.5000  0.5000  1
  Er  Er4  4  0.0000  0.2972  0.5000  1
]