data_[Rb3Na2As4]
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 [P-1]
_cell_length_a [5.3226]
_cell_length_b [6.7874]
_cell_length_c [9.7607]
_cell_angle_alpha [98.9981]
_cell_angle_beta [96.9884]
_cell_angle_gamma [109.8531]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Rb3(NaAs2)2]
_chemical_formula_sum '[Rb3 Na2 As4]'
_cell_volume [321.7331]
_cell_formula_units_Z [1]
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  0.3659  0.7712  0.5962  1.0
  Rb  Rb1  1  0.0000  0.0000  0.0000  1.0
  Na  Na2  2  0.2321  0.6328  0.1893  1.0
  As  As3  2  0.1868  0.2493  0.6969  1.0
  As  As4  2  0.3756  0.5547  0.9037  1.0
]