data_[Na6Er6Au2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Er  1.2400  1.7500  1.0300
  Au  2.5400  1.3500  1.0700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.5502]
_cell_length_b [6.7392]
_cell_length_c [6.8153]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.2447]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3Er3AuO8]
_chemical_formula_sum '[Na6 Er6 Au2 O16]'
_cell_volume [433.2528]
_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
[
  Na  Na0  4  0.2500  0.2500  0.0000  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Er  Er2  4  0.2500  0.2500  0.5000  1.0
  Er  Er3  2  0.0000  0.5000  0.5000  1.0
  Au  Au4  2  0.0000  0.0000  0.5000  1.0
  O  O5  8  0.0103  0.2467  0.2884  1.0
  O  O6  4  0.2199  0.0000  0.6981  1.0
  O  O7  4  0.2373  0.5000  0.7050  1.0
]