data_[Rb4Sn4As4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [7.6083]
_cell_length_b [6.5495]
_cell_length_c [8.2062]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.5058]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [RbSnAs]
_chemical_formula_sum '[Rb4 Sn4 As4]'
_cell_volume [394.0335]
_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  0.3880  0.6325  0.7778  1
  Sn  Sn1  4  0.0027  0.2167  0.5711  1
  As  As2  4  0.2164  0.1181  0.8861  1
]