data_[Rb6Sm4Fe2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sm  1.1700  1.8500  1.2290
  Fe  1.8300  1.4000  0.8525
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.0126]
_cell_length_b [10.4032]
_cell_length_c [6.8341]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.9753]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb3Sm2FeO6]
_chemical_formula_sum '[Rb6 Sm4 Fe2 O12]'
_cell_volume [408.8511]
_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
[
  Rb  Rb0  4  0.0000  0.1634  0.5000  1
  Rb  Rb1  2  0.0000  0.5000  0.5000  1
  Sm  Sm2  4  0.0000  0.3333  0.0000  1
  Fe  Fe3  2  0.0000  0.0000  0.0000  1
  O  O4  8  0.2112  0.1533  0.1736  1
  O  O5  4  0.2497  0.5000  0.1753  1
]