data_[Nd2Sn8Ir8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Sn  1.9600  1.4500  0.8300
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [P4_2/nmc]
_cell_length_a [6.8494]
_cell_length_b [6.8494]
_cell_length_c [8.3542]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [137]
_chemical_formula_structural [Nd(SnIr)4]
_chemical_formula_sum '[Nd2 Sn8 Ir8]'
_cell_volume [391.9358]
_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
[
  Nd  Nd0  2  0.0000  0.0000  0.0000  1
  Sn  Sn1  8  0.0000  0.2469  0.3675  1
  Ir  Ir2  8  0.0000  0.2993  0.6837  1
]