data_[Rb2Mg2Tl2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Mg  1.3100  1.5000  0.8600
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.9933]
_cell_length_b [5.0018]
_cell_length_c [12.4271]
_cell_angle_alpha [79.4669]
_cell_angle_beta [79.0278]
_cell_angle_gamma [60.0849]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [RbMgTl]
_chemical_formula_sum '[Rb2 Mg2 Tl2]'
_cell_volume [262.6912]
_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
[
  Rb  Rb0  2  0.2266  0.7413  0.3195  1.0
  Mg  Mg1  2  0.3476  0.8453  0.9579  1.0
  Tl  Tl2  2  0.0448  0.5380  0.8675  1.0
]