data_[Nd10Sm2Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.6111]
_cell_length_b [5.1119]
_cell_length_c [6.9806]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.2852]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Nd5SmSi4]
_chemical_formula_sum '[Nd10 Sm2 Si8]'
_cell_volume [557.0620]
_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
[
  Nd  Nd0  4  0.1646  0.0000  0.4944  1
  Nd  Nd1  4  0.1653  0.0000  0.0078  1
  Nd  Nd2  2  0.0000  0.5000  0.5000  1
  Sm  Sm3  2  0.0000  0.5000  0.0000  1
  Si  Si4  4  0.0089  0.0000  0.7538  1
  Si  Si5  4  0.1765  0.5000  0.2497  1
]