data_[Na2Sr4U2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  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 [C2/m]
_cell_length_a [10.7084]
_cell_length_b [5.8566]
_cell_length_c [6.0540]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.4195]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaSr2UO6]
_chemical_formula_sum '[Na2 Sr4 U2 O12]'
_cell_volume [313.1991]
_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  0.5000  1
  Sr  Sr1  4  0.2464  0.5000  0.7697  1
  U  U2  2  0.0000  0.5000  0.0000  1
  O  O3  8  0.0692  0.2630  0.8396  1
  O  O4  4  0.2198  0.5000  0.3317  1
]