data_Hf2TaPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.56
_cell_length_b   5.56
_cell_length_c   5.56
_cell_angle_alpha   134.52
_cell_angle_beta   134.52
_cell_angle_gamma   66.28
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf2TaPb
_chemical_formula_sum   'Hf2 Ta1 Pb1'
_cell_volume   85.89
_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  0.0  0.15  0.33  1.0
  Hf  Hf1  1  0.0  0.0  0.0  1.0
  Ta  Ta3  1  0.0  0.0  0.65  1.0
  Pb  Pb2  1  0.15  0.0  0.33  1.0

data_Hf2TaPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.3
_cell_length_b   4.3
_cell_length_c   5.56
_cell_angle_alpha   112.74
_cell_angle_beta   112.74
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf2TaPb
_chemical_formula_sum   'Hf2 Ta1 Pb1'
_cell_volume   85.89
_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  0.0  0.0  0.0  1.0
  Hf  Hf1  1  0.82  0.15  0.82  1.0
  Ta  Ta2  1  0.35  0.0  0.35  1.0
  Pb  Pb3  1  0.67  0.0  0.82  1.0

Hf Hf Ta Pb