data_[Y6Er3Tl3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Tl  1.6200  1.9000  1.3325
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.8048]
_cell_length_b [5.8048]
_cell_length_c [15.2841]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Y2ErTlO6]
_chemical_formula_sum '[Y6 Er3 Tl3 O18]'
_cell_volume [446.0101]
_cell_formula_units_Z [3]
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
[
  Y  Y0  3  0.0000  0.0000  0.4786  1.0
  Y  Y1  3  0.0000  0.0000  0.9748  1.0
  Er  Er2  3  0.0000  0.0000  0.1915  1.0
  Tl  Tl3  3  0.0000  0.0000  0.6945  1.0
  O  O4  9  0.0022  0.2900  0.0848  1.0
  O  O5  9  0.0355  0.6702  0.2482  1.0
]