data_[Hf1Zr1Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hf  1.3000  1.5500  0.8500
  Zr  1.3300  1.5500  0.8600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [6.5535]
_cell_length_b [3.7943]
_cell_length_c [6.6874]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0032]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [HfZrSe4]
_chemical_formula_sum '[Hf1 Zr1 Se4]'
_cell_volume [166.2884]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.0000  1.0
  Zr  Zr1  1  0.5000  0.5000  0.0000  1.0
  Se  Se2  2  0.1635  0.5000  0.7642  1.0
  Se  Se3  2  0.3304  0.0000  0.2372  1.0
]