data_[Li16Ac4Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Ac  1.1000  1.9500  1.2600
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.4388]
_cell_length_b [19.3301]
_cell_length_c [6.4330]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Li4AcSn]
_chemical_formula_sum '[Li16 Ac4 Sn4]'
_cell_volume [551.9655]
_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
[
  Li  Li0  8  0.0000  0.2599  0.5732  1
  Li  Li1  4  0.0000  0.0000  0.0000  1
  Li  Li2  4  0.0000  0.4380  0.7500  1
  Ac  Ac3  4  0.0000  0.3801  0.2500  1
  Sn  Sn4  4  0.0000  0.1605  0.2500  1
]