data_[Ac12Er2Tl10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Er  1.2400  1.7500  1.0300
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.8082]
_cell_length_b [8.3789]
_cell_length_c [17.6446]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Ac6ErTl5]
_chemical_formula_sum '[Ac12 Er2 Tl10]'
_cell_volume [858.6946]
_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
[
  Ac  Ac0  8  0.0000  0.2559  0.1714  1
  Ac  Ac1  4  0.0000  0.2377  0.5000  1
  Er  Er2  2  0.0000  0.0000  0.0000  1
  Tl  Tl3  4  0.0000  0.0000  0.3319  1
  Tl  Tl4  4  0.0000  0.5000  0.3459  1
  Tl  Tl5  2  0.0000  0.5000  0.0000  1
]