data_[Ac4Sm12Y4Er4]
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
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [20.6321]
_cell_length_b [5.8259]
_cell_length_c [7.1209]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.1684]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [AcSm3YEr]
_chemical_formula_sum '[Ac4 Sm12 Y4 Er4]'
_cell_volume [855.7474]
_cell_formula_units_Z [4]
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  4  0.1470  0.5000  0.0280  1
  Sm  Sm1  4  0.0177  0.5000  0.7344  1
  Sm  Sm2  4  0.1609  0.0000  0.7340  1
  Sm  Sm3  4  0.2189  0.0000  0.2693  1
  Y  Y4  4  0.0572  0.0000  0.2958  1
  Er  Er5  4  0.1444  0.5000  0.4814  1
]