data_[Na8Er6Ti2O16]
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
  Ti  1.5400  1.4000  0.8517
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.4361]
_cell_length_b [6.6277]
_cell_length_c [6.7244]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.7885]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na4Er3TiO8]
_chemical_formula_sum '[Na8 Er6 Ti2 O16]'
_cell_volume [418.5784]
_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
  Na  Na2  2  0.0000  0.5000  0.0000  1.0
  Er  Er3  4  0.2500  0.2500  0.5000  1.0
  Er  Er4  2  0.0000  0.5000  0.5000  1.0
  Ti  Ti5  2  0.0000  0.0000  0.5000  1.0
  O  O6  8  0.0115  0.2439  0.2893  1.0
  O  O7  4  0.2191  0.0000  0.6976  1.0
  O  O8  4  0.2381  0.5000  0.7124  1.0
]