data_[Rb4Na4B40O64]
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
  B  2.0400  0.8500  0.4100
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [11.3333]
_cell_length_b [12.4203]
_cell_length_c [10.5658]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.0633]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbNa(B5O8)2]
_chemical_formula_sum '[Rb4 Na4 B40 O64]'
_cell_volume [1405.7178]
_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  0.1539  0.2500  1
  Na  Na1  4  0.0000  0.4766  0.2500  1
  B  B2  8  0.0487  0.3766  0.9767  1
  B  B3  8  0.1418  0.2825  0.6576  1
  B  B4  8  0.2057  0.3291  0.1910  1
  B  B5  8  0.2122  0.1248  0.5759  1
  B  B6  8  0.2435  0.4696  0.0479  1
  O  O7  8  0.0598  0.3678  0.6314  1
  O  O8  8  0.0819  0.3172  0.0897  1
  O  O9  8  0.1230  0.4599  0.9588  1
  O  O10  8  0.1240  0.2051  0.5586  1
  O  O11  8  0.1852  0.0547  0.4691  1
  O  O12  8  0.1865  0.3797  0.3117  1
  O  O13  8  0.2099  0.0988  0.8497  1
  O  O14  8  0.2360  0.2773  0.7757  1
]