data_[Sr3La6Np3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  La  1.1000  1.9500  1.1720
  Np  1.3600  1.7500  1.0000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [6.1756]
_cell_length_b [6.1756]
_cell_length_c [15.7213]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [SrLa2NpO6]
_chemical_formula_sum '[Sr3 La6 Np3 O18]'
_cell_volume [519.2481]
_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  0.1971  1
  La  La1  3  0.0000  0.0000  0.4676  1
  La  La2  3  0.0000  0.0000  0.9735  1
  Np  Np3  3  0.0000  0.0000  0.6856  1
  O  O4  9  0.0070  0.7326  0.5901  1
  O  O5  9  0.0397  0.3491  0.7481  1
]