data_[Hf4Cu8Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hf  1.3000  1.5500  0.8500
  Cu  1.9000  1.3500  0.8200
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.6731]
_cell_length_b [12.9012]
_cell_length_c [11.7585]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Hf(CuSe2)2]
_chemical_formula_sum '[Hf4 Cu8 Se16]'
_cell_volume [557.2116]
_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
[
  Hf  Hf0  4  0.0000  0.3949  0.2500  1
  Cu  Cu1  8  0.0000  0.1259  0.0657  1
  Se  Se2  8  0.0000  0.2064  0.6178  1
  Se  Se3  4  0.0000  0.0509  0.2500  1
  Se  Se4  4  0.0000  0.5000  0.0000  1
]