data_[Rb8Se4N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Se  2.5500  1.1500  1.0133
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.1418]
_cell_length_b [5.9033]
_cell_length_c [10.1350]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.8432]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Rb2SeN2]
_chemical_formula_sum '[Rb8 Se4 N8]'
_cell_volume [570.7544]
_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
[
  Rb  Rb0  8  0.1246  0.2544  0.1255  1.0
  Se  Se1  4  0.0000  0.2464  0.7500  1.0
  N  N2  8  0.2306  0.1722  0.5197  1.0
]