data_[Ac2Sm14Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.5726]
_cell_length_b [7.1631]
_cell_length_c [17.1474]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [AcSm7Er2]
_chemical_formula_sum '[Ac2 Sm14 Er4]'
_cell_volume [684.4697]
_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  2  0.0000  0.0000  0.0000  1
  Sm  Sm1  8  0.0000  0.2463  0.3889  1
  Sm  Sm2  4  0.0000  0.0000  0.2028  1
  Sm  Sm3  2  0.0000  0.5000  0.0000  1
  Er  Er4  4  0.0000  0.5000  0.1990  1
]