data_[Na2Nd4Ir2O10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Nd  1.1400  1.8500  1.2765
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [6.8462]
_cell_length_b [6.8462]
_cell_length_c [5.8232]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [NaNd2IrO5]
_chemical_formula_sum '[Na2 Nd4 Ir2 O10]'
_cell_volume [272.9335]
_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
[
  Na  Na0  2  0.0000  0.0000  0.0000  1
  Nd  Nd1  4  0.1784  0.3216  0.5000  1
  Ir  Ir2  2  0.0000  0.5000  0.0000  1
  O  O3  8  0.1337  0.6337  0.2511  1
  O  O4  2  0.0000  0.0000  0.5000  1
]