data_[Na1Sr3Os2O9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [5.7178]
_cell_length_b [5.7178]
_cell_length_c [7.0223]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [NaSr3Os2O9]
_chemical_formula_sum '[Na1 Sr3 Os2 O9]'
_cell_volume [198.8203]
_cell_formula_units_Z [1]
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
[
  Na  Na0  1  0.0000  0.0000  0.5000  1.0
  Sr  Sr1  2  0.3333  0.6667  0.3600  1.0
  Sr  Sr2  1  0.0000  0.0000  0.0000  1.0
  Os  Os3  2  0.3333  0.6667  0.8446  1.0
  O  O4  6  0.1775  0.3549  0.6864  1.0
  O  O5  3  0.0000  0.5000  0.0000  1.0
]