data_[Sr3Nd6Hf3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Nd  1.1400  1.8500  1.2765
  Hf  1.3000  1.5500  0.8500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.9645]
_cell_length_b [5.9645]
_cell_length_c [15.4468]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [SrNd2HfO6]
_chemical_formula_sum '[Sr3 Nd6 Hf3 O18]'
_cell_volume [475.9070]
_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
[
  Sr  Sr0  3  0.0000  0.0000  0.8018  1.0
  Nd  Nd1  3  0.0000  0.0000  0.0255  1.0
  Nd  Nd2  3  0.0000  0.0000  0.5302  1.0
  Hf  Hf3  3  0.0000  0.0000  0.3161  1.0
  O  O4  9  0.0423  0.3393  0.9199  1.0
  O  O5  9  0.0709  0.6770  0.0761  1.0
]