data_[Rb4Er4C8O24]
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
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.7600]
_cell_length_b [9.4040]
_cell_length_c [7.1898]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.0817]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbEr(CO3)2]
_chemical_formula_sum '[Rb4 Er4 C8 O24]'
_cell_volume [552.6514]
_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  0.1081  0.2500  1.0
  Er  Er1  4  0.0000  0.4070  0.7500  1.0
  C  C2  8  0.2244  0.3731  0.2411  1.0
  O  O3  8  0.0808  0.3800  0.0949  1.0
  O  O4  8  0.1739  0.2268  0.7465  1.0
  O  O5  8  0.2469  0.0269  0.6267  1.0
]