data_[Al4Tl4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Al  1.6100  1.2500  0.6750
  Tl  1.6200  1.9000  1.3325
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pna2_1]
_cell_length_a [5.7632]
_cell_length_b [7.8953]
_cell_length_c [5.4966]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [33]
_chemical_formula_structural [AlTlO2]
_chemical_formula_sum '[Al4 Tl4 O8]'
_cell_volume [250.1075]
_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
[
  Al  Al0  4  0.0158  0.8742  0.0010  1.0
  Tl  Tl1  4  0.0573  0.3760  0.9947  1.0
  O  O2  4  0.0045  0.9449  0.6940  1.0
  O  O3  4  0.2232  0.2625  0.5601  1.0
]