data_[Rb4Er4Cl16]
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
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.9528]
_cell_length_b [15.4202]
_cell_length_c [6.7037]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.6937]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbErCl4]
_chemical_formula_sum '[Rb4 Er4 Cl16]'
_cell_volume [845.9205]
_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  0.1585  0.7500  1
  Er  Er1  4  0.0000  0.4212  0.2500  1
  Cl  Cl2  8  0.1603  0.3068  0.1986  1
  Cl  Cl3  8  0.1915  0.4563  0.7204  1
]