data_[Sr3Fe3O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Fe  1.8300  1.4000  0.8525
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P3_121]
_cell_length_a [5.7999]
_cell_length_b [5.7999]
_cell_length_c [6.6664]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [152]
_chemical_formula_structural [SrFeO2]
_chemical_formula_sum '[Sr3 Fe3 O6]'
_cell_volume [194.2039]
_cell_formula_units_Z [3]
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
[
  Sr  Sr0  3  0.0000  0.3512  0.6667  1.0
  Fe  Fe1  3  0.0000  0.3790  0.1667  1.0
  O  O2  6  0.0863  0.6771  0.9464  1.0
]