data_[Li4Np4Ag4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Np  1.3600  1.7500  1.0000
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [6.7300]
_cell_length_b [7.0445]
_cell_length_c [8.4014]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [LiNpAgO4]
_chemical_formula_sum '[Li4 Np4 Ag4 O16]'
_cell_volume [398.3074]
_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
[
  Li  Li0  4  0.2500  0.2500  0.7500  1
  Np  Np1  4  0.0000  0.0000  0.5000  1
  Ag  Ag2  4  0.0000  0.2500  0.0986  1
  O  O3  8  0.0000  0.0265  0.7262  1
  O  O4  8  0.1958  0.2500  0.5030  1
]