data_[Rb4Li4Er8Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Li  0.9800  1.4500  0.9000
  Er  1.2400  1.7500  1.0300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.1905]
_cell_length_b [14.1077]
_cell_length_c [14.5879]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbLi(ErSe2)2]
_chemical_formula_sum '[Rb4 Li4 Er8 Se16]'
_cell_volume [862.4066]
_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  0.1085  0.7500  1.0
  Li  Li1  4  0.0000  0.1696  0.2500  1.0
  Er  Er2  8  0.0000  0.3661  0.5616  1.0
  Se  Se3  8  0.0000  0.2616  0.1052  1.0
  Se  Se4  4  0.0000  0.0000  0.0000  1.0
  Se  Se5  4  0.0000  0.4227  0.7500  1.0
]