data_[Rb4Li4N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Li  0.9800  1.4500  0.9000
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [I4_1/amd]
_cell_length_a [4.0032]
_cell_length_b [4.0032]
_cell_length_c [14.4679]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [141]
_chemical_formula_structural [RbLiN2]
_chemical_formula_sum '[Rb4 Li4 N8]'
_cell_volume [231.8554]
_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  4  0.0000  0.0000  0.0000  1
  Li  Li1  4  0.0000  0.0000  0.5000  1
  N  N2  8  0.0000  0.2500  0.6250  1
]