data_[Rb4Na4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pm]
_cell_length_a [6.9331]
_cell_length_b [4.0444]
_cell_length_c [10.7775]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.8457]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [6]
_chemical_formula_structural [RbNaO]
_chemical_formula_sum '[Rb4 Na4 O4]'
_cell_volume [289.2322]
_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  1  0.1959  0.0000  0.5570  1.0
  Rb  Rb1  1  0.3087  0.5000  0.3203  1.0
  Rb  Rb2  1  0.6348  0.0000  0.9114  1.0
  Rb  Rb3  1  0.7527  0.5000  0.6010  1.0
  Na  Na4  1  0.1229  0.5000  0.9881  1.0
  Na  Na5  1  0.3790  0.0000  0.0972  1.0
  Na  Na6  1  0.7689  0.0000  0.3709  1.0
  Na  Na7  1  0.8447  0.5000  0.1663  1.0
  O  O8  1  0.0251  0.0000  0.0548  1.0
  O  O9  1  0.4916  0.5000  0.0473  1.0
  O  O10  1  0.5267  0.0000  0.4828  1.0
  O  O11  1  0.9494  0.5000  0.4027  1.0
]