data_[Rb2Yb2Be2F12]
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
  Be  1.5700  1.0500  0.5900
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.4798]
_cell_length_b [6.0950]
_cell_length_c [7.3061]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.5816]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbYbBeF6]
_chemical_formula_sum '[Rb2 Yb2 Be2 F12]'
_cell_volume [266.4262]
_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  2  0.0821  0.7500  0.2294  1.0
  Yb  Yb1  2  0.3566  0.7500  0.7775  1.0
  Be  Be2  2  0.2320  0.2500  0.4614  1.0
  F  F3  4  0.2276  0.0424  0.5839  1.0
  F  F4  4  0.3623  0.0026  0.0273  1.0
  F  F5  2  0.0143  0.2500  0.2586  1.0
  F  F6  2  0.4386  0.2500  0.4047  1.0
]