data_[Cs8Na4Be4As8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Na  0.9300  1.8000  1.1600
  Be  1.5700  1.0500  0.5900
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [7.0479]
_cell_length_b [16.5333]
_cell_length_c [6.4648]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Cs2NaBeAs2]
_chemical_formula_sum '[Cs8 Na4 Be4 As8]'
_cell_volume [753.3054]
_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
[
  Cs  Cs0  8  0.2477  0.1655  0.0000  1
  Na  Na1  4  0.0000  0.0000  0.2500  1
  Be  Be2  4  0.0000  0.5000  0.2500  1
  As  As3  8  0.1852  0.4290  0.0000  1
]