data_[Mg4Cd8Ir4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Cd  1.6900  1.5500  1.0900
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [I-42d]
_cell_length_a [4.0274]
_cell_length_b [4.0274]
_cell_length_c [19.8096]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [122]
_chemical_formula_structural [MgCd2Ir]
_chemical_formula_sum '[Mg4 Cd8 Ir4]'
_cell_volume [321.3172]
_cell_formula_units_Z [4]
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
[
  Mg  Mg0  4  0.0000  0.0000  0.5000  1
  Cd  Cd1  8  0.2357  0.2500  0.1250  1
  Ir  Ir2  4  0.0000  0.0000  0.0000  1
]