data_[Ac2Be4F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Be  1.5700  1.0500  0.5900
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.4032]
_cell_length_b [4.6496]
_cell_length_c [6.3407]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.1157]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [AcBe2F8]
_chemical_formula_sum '[Ac2 Be4 F16]'
_cell_volume [279.9354]
_cell_formula_units_Z [2]
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
[
  Ac  Ac0  2  0.0000  0.0000  0.0000  1
  Be  Be1  4  0.2083  0.0000  0.6756  1
  F  F2  8  0.1349  0.2407  0.7690  1
  F  F3  4  0.1296  0.5000  0.1732  1
  F  F4  4  0.1635  0.0000  0.4163  1
]