data_[Ni6Ir9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ni  1.9100  1.3500  0.7400
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [R32]
_cell_length_a [6.4180]
_cell_length_b [6.4180]
_cell_length_c [6.6615]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [155]
_chemical_formula_structural [Ni2Ir3]
_chemical_formula_sum '[Ni6 Ir9]'
_cell_volume [237.6333]
_cell_formula_units_Z [3]
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
[
  Ni  Ni0  6  0.0000  0.0000  0.3213  1
  Ir  Ir1  9  0.0000  0.2337  0.0000  1
]