data_[Sm2Dy4Mg8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Dy  1.2200  1.7500  1.1310
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [5.9877]
_cell_length_b [12.9419]
_cell_length_c [5.4900]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Sm(DyMg2)2]
_chemical_formula_sum '[Sm2 Dy4 Mg8]'
_cell_volume [425.4311]
_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
[
  Sm  Sm0  2  0.0000  0.5000  0.0000  1
  Dy  Dy1  4  0.0000  0.1325  0.5000  1
  Mg  Mg2  4  0.0000  0.2528  0.0000  1
  Mg  Mg3  4  0.0000  0.3798  0.5000  1
]