data_[Ac4Ni4Ag6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Ni  1.9100  1.3500  0.7400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [4.0763]
_cell_length_b [20.1713]
_cell_length_c [3.9241]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Ac2Ni2Ag3]
_chemical_formula_sum '[Ac4 Ni4 Ag6]'
_cell_volume [322.6543]
_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  4  0.0000  0.1624  0.0000  1
  Ni  Ni1  4  0.0000  0.2860  0.5000  1
  Ag  Ag2  4  0.0000  0.4316  0.5000  1
  Ag  Ag3  2  0.0000  0.0000  0.0000  1
]