data_[Zr4Tl8Pb4Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zr  1.3300  1.5500  0.8600
  Tl  1.6200  1.9000  1.3325
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [16.0282]
_cell_length_b [8.5428]
_cell_length_c [7.0770]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.0011]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [ZrTl2PbSe4]
_chemical_formula_sum '[Zr4 Tl8 Pb4 Se16]'
_cell_volume [916.2198]
_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
[
  Zr  Zr0  4  0.0000  0.1237  0.2500  1
  Tl  Tl1  8  0.2482  0.3742  0.2297  1
  Pb  Pb2  4  0.0000  0.3771  0.7500  1
  Se  Se3  8  0.1002  0.1047  0.0032  1
  Se  Se4  8  0.1092  0.3447  0.4683  1
]