data_[Sm6Si8Os8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Si  1.9000  1.1000  0.5400
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [I-43m]
_cell_length_a [7.4931]
_cell_length_b [7.4931]
_cell_length_c [7.4931]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [217]
_chemical_formula_structural [Sm3(SiOs)4]
_chemical_formula_sum '[Sm6 Si8 Os8]'
_cell_volume [420.7197]
_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  6  0.0000  0.0000  0.5000  1.0
  Si  Si1  8  0.1849  0.1849  0.8151  1.0
  Os  Os2  8  0.1353  0.8647  0.8647  1.0
]