data_[Sr6Tl6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.9646]
_cell_length_b [12.6843]
_cell_length_c [7.0266]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [SrTl]
_chemical_formula_sum '[Sr6 Tl6]'
_cell_volume [442.4819]
_cell_formula_units_Z [6]
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
[
  Sr  Sr0  4  0.0000  0.1891  0.0797  1
  Sr  Sr1  2  0.0000  0.5000  0.2876  1
  Tl  Tl2  4  0.0000  0.1265  0.5484  1
  Tl  Tl3  2  0.0000  0.5000  0.7911  1
]