data_[Rb4Li4Si2O8]
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
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.5197]
_cell_length_b [5.7048]
_cell_length_c [8.8378]
_cell_angle_alpha [83.6532]
_cell_angle_beta [75.3648]
_cell_angle_gamma [85.7282]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Rb2Li2SiO4]
_chemical_formula_sum '[Rb4 Li4 Si2 O8]'
_cell_volume [267.3008]
_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
[
  Rb  Rb0  2  0.2077  0.2713  0.9825  1.0
  Rb  Rb1  2  0.4759  0.8500  0.7314  1.0
  Li  Li2  2  0.0679  0.8114  0.5617  1.0
  Li  Li3  2  0.3031  0.4062  0.5816  1.0
  Si  Si4  2  0.1457  0.6876  0.2812  1.0
  O  O5  2  0.0004  0.4423  0.2801  1.0
  O  O6  2  0.0814  0.1323  0.6196  1.0
  O  O7  2  0.2712  0.7964  0.1017  1.0
  O  O8  2  0.3565  0.6414  0.3904  1.0
]