data_[Nb4Mo2Ir4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  Mo  2.1600  1.4500  0.7750
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [3.6843]
_cell_length_b [3.6843]
_cell_length_c [13.2034]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Nb2MoIr2]
_chemical_formula_sum '[Nb4 Mo2 Ir4]'
_cell_volume [179.2202]
_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
[
  Nb  Nb0  4  0.0000  0.0000  0.3952  1
  Mo  Mo1  2  0.0000  0.0000  0.0000  1
  Ir  Ir2  4  0.0000  0.5000  0.2500  1
]