data_[K2Si4Os2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Si  1.9000  1.1000  0.5400
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [7.9278]
_cell_length_b [3.0911]
_cell_length_c [7.7297]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.0052]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [KSi2Os]
_chemical_formula_sum '[K2 Si4 Os2]'
_cell_volume [170.2401]
_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
[
  K  K0  2  0.0462  0.5000  0.5063  1
  Si  Si1  2  0.1654  0.5000  0.1351  1
  Si  Si2  2  0.4712  0.5000  0.8624  1
  Os  Os3  2  0.3173  0.0000  0.9962  1
]