data_[Na4La4Se4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  La  1.1000  1.9500  1.1720
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.2103]
_cell_length_b [7.2544]
_cell_length_c [8.9025]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [NaLaSeO4]
_chemical_formula_sum '[Na4 La4 Se4 O16]'
_cell_volume [465.6570]
_cell_formula_units_Z [4]
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  4  0.0000  0.0000  0.5000  1
  La  La1  4  0.2500  0.2500  0.7500  1
  Se  Se2  4  0.0000  0.2500  0.1582  1
  O  O3  8  0.0000  0.0409  0.7458  1
  O  O4  8  0.1896  0.2500  0.0400  1
]