data_[Rb4Na4As6]
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
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.6328]
_cell_length_b [5.0476]
_cell_length_c [7.4222]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.2797]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Na2As3]
_chemical_formula_sum '[Rb4 Na4 As6]'
_cell_volume [408.7129]
_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  4  0.1532  0.0000  0.8030  1
  Na  Na1  4  0.1431  0.0000  0.2896  1
  As  As2  4  0.0718  0.5000  0.4319  1
  As  As3  2  0.0000  0.5000  0.0000  1
]