data_[Gd4Tl12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Gd  1.2000  1.8000  1.0750
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [Ama2]
_cell_length_a [4.7841]
_cell_length_b [18.4230]
_cell_length_c [31.9096]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [40]
_chemical_formula_structural [GdTl3]
_chemical_formula_sum '[Gd4 Tl12]'
_cell_volume [2812.4179]
_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
[
  Gd  Gd0  4  0.2500  0.0852  0.9670  1
  Tl  Tl1  4  0.2500  0.0780  0.0974  1
  Tl  Tl2  4  0.2500  0.4344  0.5300  1
  Tl  Tl3  4  0.2500  0.4407  0.4055  1
]