data_[Si2Tc8Os4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Tc  1.9000  1.3500  0.7417
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [4.3073]
_cell_length_b [4.3073]
_cell_length_c [12.7112]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Si(Tc2Os)2]
_chemical_formula_sum '[Si2 Tc8 Os4]'
_cell_volume [235.8275]
_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
[
  Tc  Tc0  4  0.0000  0.0000  0.1837  1
  Tc  Tc1  4  0.0000  0.5000  0.0000  1
  Si  Si2  2  0.0000  0.0000  0.0000  1
  Os  Os3  4  0.0000  0.0000  0.3649  1
]