data_[Np2Tl2Ag2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.2207]
_cell_length_b [5.6273]
_cell_length_c [8.3019]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.2349]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NpTlAgO4]
_chemical_formula_sum '[Np2 Tl2 Ag2 O8]'
_cell_volume [272.6762]
_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
[
  Np  Np0  2  0.3811  0.7500  0.3411  1
  Tl  Tl1  2  0.2142  0.2500  0.0035  1
  Ag  Ag2  2  0.0989  0.7500  0.6657  1
  O  O3  4  0.1385  0.5043  0.2725  1
  O  O4  2  0.3953  0.7500  0.5826  1
  O  O5  2  0.4068  0.7500  0.1218  1
]