data_[Si4Ru12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [5.2054]
_cell_length_b [8.0838]
_cell_length_c [5.1828]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [SiRu3]
_chemical_formula_sum '[Si4 Ru12]'
_cell_volume [218.0878]
_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
[
  Si  Si0  4  0.0612  0.2500  0.4630  1
  Ru  Ru1  8  0.1866  0.5235  0.6928  1
  Ru  Ru2  4  0.0173  0.2500  0.9329  1
]