data_[Hf4Ge4Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hf  1.3000  1.5500  0.8500
  Ge  2.0100  1.2500  0.7700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.7436]
_cell_length_b [16.5483]
_cell_length_c [10.5143]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [HfGeSe4]
_chemical_formula_sum '[Hf4 Ge4 Se16]'
_cell_volume [651.3636]
_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  0.3415  0.2690  1.0
  Ge  Ge1  4  0.0000  0.2251  0.4711  1.0
  Se  Se2  4  0.0000  0.0383  0.7455  1.0
  Se  Se3  4  0.0000  0.1066  0.9452  1.0
  Se  Se4  4  0.0000  0.2704  0.6984  1.0
  Se  Se5  4  0.0000  0.3733  0.0030  1.0
]