data_[Sr18U6O36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  U  1.3800  1.7500  0.9913
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [10.0959]
_cell_length_b [10.0959]
_cell_length_c [11.9075]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Sr3UO6]
_chemical_formula_sum '[Sr18 U6 O36]'
_cell_volume [1051.1001]
_cell_formula_units_Z [6]
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  18  0.0374  0.7702  0.7111  1
  U  U1  3  0.0000  0.0000  0.0000  1
  U  U2  3  0.0000  0.0000  0.5000  1
  O  O3  18  0.0259  0.8491  0.3915  1
  O  O4  18  0.0305  0.8381  0.9073  1
]