data_[Rb2Si1As2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Si  1.9000  1.1000  0.5400
  As  2.1800  1.1500  0.6600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P-3]
_cell_length_a [6.9036]
_cell_length_b [6.9036]
_cell_length_c [7.8275]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [147]
_chemical_formula_structural [Rb2Si(AsSe3)2]
_chemical_formula_sum '[Rb2 Si1 As2 Se6]'
_cell_volume [323.0725]
_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  0.3333  0.6667  0.5862  1.0
  Si  Si1  1  0.0000  0.0000  0.0000  1.0
  As  As2  2  0.3333  0.6667  0.0424  1.0
  Se  Se3  6  0.0960  0.7774  0.1992  1.0
]