data_[Sr2Ce2Ta4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ce  1.1200  1.8500  1.0800
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [5.3712]
_cell_length_b [5.3712]
_cell_length_c [11.4207]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [SrCeTa2O8]
_chemical_formula_sum '[Sr2 Ce2 Ta4 O16]'
_cell_volume [329.4824]
_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
[
  Sr  Sr0  2  0.0000  0.5000  0.7500  1.0
  Ce  Ce1  2  0.0000  0.0000  0.0000  1.0
  Ta  Ta2  2  0.0000  0.0000  0.5000  1.0
  Ta  Ta3  2  0.0000  0.5000  0.2500  1.0
  O  O4  8  0.1576  0.7448  0.1568  1.0
  O  O5  8  0.1821  0.2426  0.5836  1.0
]