data_[K8Os4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [8.4694]
_cell_length_b [9.6251]
_cell_length_c [8.0038]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [K2OsO5]
_chemical_formula_sum '[K8 Os4 O20]'
_cell_volume [652.4588]
_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
[
  K  K0  8  0.2500  0.2500  0.2157  1.0
  Os  Os1  4  0.0000  0.0000  0.9732  1.0
  O  O2  8  0.0000  0.1916  0.9834  1.0
  O  O3  8  0.1871  0.0000  0.0780  1.0
  O  O4  4  0.0000  0.0000  0.7523  1.0
]