data_[Sr2Np2Ag2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Np  1.3600  1.7500  1.0000
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [4.2362]
_cell_length_b [10.7805]
_cell_length_c [7.2433]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.7383]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [SrNpAgSe3]
_chemical_formula_sum '[Sr2 Np2 Ag2 Se6]'
_cell_volume [316.7776]
_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
[
  Sr  Sr0  2  0.2591  0.2500  0.0086  1
  Np  Np1  2  0.5000  0.0000  0.5000  1
  Ag  Ag2  2  0.0217  0.7500  0.5559  1
  Se  Se3  4  0.1409  0.5568  0.7839  1
  Se  Se4  2  0.4059  0.7500  0.3211  1
]