data_[Rb4Er4P8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Er  1.2400  1.7500  1.0300
  P  2.1900  1.0000  0.5500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.7003]
_cell_length_b [10.9679]
_cell_length_c [8.3244]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.0373]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbEr(PO3)2]
_chemical_formula_sum '[Rb4 Er4 P8 O24]'
_cell_volume [701.2998]
_cell_formula_units_Z [4]
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  0.4181  0.7500  1.0
  Er  Er1  4  0.0000  0.1697  0.2500  1.0
  P  P2  8  0.1211  0.1285  0.6821  1.0
  O  O3  8  0.0712  0.1773  0.5127  1.0
  O  O4  8  0.1670  0.0088  0.1877  1.0
  O  O5  8  0.2305  0.2952  0.2325  1.0
]