data_[Sm12Er4Co4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
  Co  1.8800  1.3500  0.7683
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [8.4569]
_cell_length_b [9.3408]
_cell_length_c [7.4107]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Sm3ErCo]
_chemical_formula_sum '[Sm12 Er4 Co4]'
_cell_volume [585.3996]
_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
[
  Sm  Sm0  8  0.2500  0.0346  0.7500  1
  Sm  Sm1  4  0.0000  0.2500  0.0223  1
  Er  Er2  4  0.0000  0.2500  0.4713  1
  Co  Co3  4  0.2500  0.2500  0.2500  1
]