data_[K3Rb1Be2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Be  1.5700  1.0500  0.5900
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [5.7478]
_cell_length_b [5.7478]
_cell_length_c [8.7265]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [K3RbBe2F8]
_chemical_formula_sum '[K3 Rb1 Be2 F8]'
_cell_volume [249.6736]
_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
[
  K  K0  2  0.3333  0.6667  0.2543  1.0
  K  K1  1  0.0000  0.0000  0.0000  1.0
  Rb  Rb2  1  0.0000  0.0000  0.5000  1.0
  Be  Be3  2  0.3333  0.6667  0.7945  1.0
  F  F4  6  0.1849  0.3698  0.7326  1.0
  F  F5  2  0.3333  0.6667  0.9714  1.0
]