data_[Na2U2Sn4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  U  1.3800  1.7500  0.9913
  Sn  1.9600  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [7.0465]
_cell_length_b [7.3055]
_cell_length_c [6.4896]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [NaU(SnO4)2]
_chemical_formula_sum '[Na2 U2 Sn4 O16]'
_cell_volume [334.0707]
_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
  U  U1  2  0.0000  0.0000  0.0000  1
  Sn  Sn2  4  0.0000  0.5000  0.2521  1
  O  O3  8  0.2013  0.0000  0.2195  1
  O  O4  4  0.0000  0.3120  0.0000  1
  O  O5  4  0.0000  0.3198  0.5000  1
]