data_[Tl4Cr4Te2Se12]
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
  Te  2.1000  1.4000  1.2933
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.6509]
_cell_length_b [11.5522]
_cell_length_c [8.0137]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.6209]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tl2Cr2TeSe6]
_chemical_formula_sum '[Tl4 Cr4 Te2 Se12]'
_cell_volume [595.7692]
_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
[
  Tl  Tl0  4  0.0000  0.1569  0.0000  1.0
  Cr  Cr1  4  0.0000  0.3322  0.5000  1.0
  Te  Te2  2  0.0000  0.0000  0.5000  1.0
  Se  Se3  8  0.2367  0.1791  0.6866  1.0
  Se  Se4  4  0.1942  0.5000  0.6866  1.0
]