data_[Er4Hf2Tl6Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Hf  1.3000  1.5500  0.8500
  Tl  1.6200  1.9000  1.3325
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.9113]
_cell_length_b [11.9840]
_cell_length_c [8.6325]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.9336]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er2Hf(TlSe2)3]
_chemical_formula_sum '[Er4 Hf2 Tl6 Se12]'
_cell_volume [687.5166]
_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
[
  Er  Er0  4  0.0000  0.3334  0.0000  1
  Hf  Hf1  2  0.0000  0.0000  0.0000  1
  Tl  Tl2  4  0.0000  0.1673  0.5000  1
  Tl  Tl3  2  0.0000  0.5000  0.5000  1
  Se  Se4  8  0.2239  0.1589  0.1902  1
  Se  Se5  4  0.2474  0.5000  0.1911  1
]