data_[Rb4Na4Sn4As8]
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
  Sn  1.9600  1.4500  0.8300
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.3661]
_cell_length_b [4.4544]
_cell_length_c [10.2017]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.8418]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbNaSnAs2]
_chemical_formula_sum '[Rb4 Na4 Sn4 As8]'
_cell_volume [689.9849]
_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  0.1286  0.5000  0.6637  1.0
  Na  Na1  4  0.1953  0.5000  0.0793  1.0
  Sn  Sn2  4  0.0550  0.0000  0.1687  1.0
  As  As3  4  0.1113  0.5000  0.3158  1.0
  As  As4  4  0.1149  0.0000  0.9308  1.0
]