data_[Na3Ac1Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ac  1.1000  1.9500  1.2600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P3m1]
_cell_length_a [5.7304]
_cell_length_b [5.7304]
_cell_length_c [9.5144]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [Na3AcAg8]
_chemical_formula_sum '[Na3 Ac1 Ag8]'
_cell_volume [270.5747]
_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
[
  Na  Na0  1  0.0000  0.0000  0.9592  1
  Na  Na1  1  0.6667  0.3333  0.0565  1
  Na  Na2  1  0.6667  0.3333  0.4063  1
  Ac  Ac3  1  0.0000  0.0000  0.5652  1
  Ag  Ag4  3  0.1658  0.3316  0.2491  1
  Ag  Ag5  3  0.5021  0.0043  0.7549  1
  Ag  Ag6  1  0.3333  0.6667  0.0014  1
  Ag  Ag7  1  0.3333  0.6667  0.4993  1
]