data_[Rb8Al4As8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Al  1.6100  1.2500  0.6750
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.8389]
_cell_length_b [6.7464]
_cell_length_c [9.2966]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.0469]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2AlAs2]
_chemical_formula_sum '[Rb8 Al4 As8]'
_cell_volume [788.8625]
_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  0.1452  0.0000  0.4662  1.0
  Rb  Rb1  4  0.2338  0.0000  0.1207  1.0
  Al  Al2  4  0.0080  0.5000  0.1618  1.0
  As  As3  4  0.0688  0.5000  0.4588  1.0
  As  As4  4  0.1556  0.5000  0.1159  1.0
]