data_[Tl4Cr16Se24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Cr  1.6600  1.4000  0.9400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.7488]
_cell_length_b [12.6436]
_cell_length_c [19.5707]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Tl(Cr2Se3)2]
_chemical_formula_sum '[Tl4 Cr16 Se24]'
_cell_volume [927.6277]
_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
[
  Tl  Tl0  4  0.0000  0.3309  0.7500  1
  Cr  Cr1  8  0.0000  0.1369  0.0398  1
  Cr  Cr2  8  0.0000  0.4105  0.1288  1
  Se  Se3  8  0.0000  0.0381  0.1490  1
  Se  Se4  8  0.0000  0.2239  0.5796  1
  Se  Se5  4  0.0000  0.3541  0.2500  1
  Se  Se6  4  0.0000  0.5000  0.0000  1
]