data_[Hf6Zr2]
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
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.2202]
_cell_length_b [10.2135]
_cell_length_c [5.5716]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Hf3Zr]
_chemical_formula_sum '[Hf6 Zr2]'
_cell_volume [183.2459]
_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
[
  Hf  Hf0  4  0.0000  0.2511  0.3334  1.0
  Hf  Hf1  2  0.0000  0.0000  0.0006  1.0
  Zr  Zr2  2  0.0000  0.5000  0.9992  1.0
]