data_[Rb3Yb1O3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Yb  1.1000  1.7500  1.0840
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [4.1165]
_cell_length_b [20.9299]
_cell_length_c [6.5878]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [Rb3YbO3]
_chemical_formula_sum '[Rb3 Yb1 O3]'
_cell_volume [567.5871]
_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
[
  Rb  Rb0  2  0.5000  0.3583  0.6945  1
  Rb  Rb1  1  0.5000  0.5000  0.0777  1
  Yb  Yb2  1  0.0000  0.5000  0.6349  1
  O  O3  2  0.0000  0.4200  0.8343  1
  O  O4  1  0.5000  0.5000  0.5061  1
]