data_[Ac18Co6Ni2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Co  1.8800  1.3500  0.7683
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.0802]
_cell_length_b [10.9893]
_cell_length_c [11.8071]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.0540]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Ac9Co3Ni]
_chemical_formula_sum '[Ac18 Co6 Ni2]'
_cell_volume [913.5470]
_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  0.1377  0.5769  0.7874  1
  Ac  Ac1  4  0.2420  0.5659  0.4595  1
  Ac  Ac2  4  0.3479  0.5718  0.1227  1
  Ac  Ac3  2  0.1379  0.2500  0.9659  1
  Ac  Ac4  2  0.2792  0.2500  0.6331  1
  Ac  Ac5  2  0.3957  0.2500  0.3048  1
  Co  Co6  4  0.4453  0.0056  0.6714  1
  Co  Co7  2  0.0000  0.0000  0.0000  1
  Ni  Ni8  2  0.0265  0.2500  0.4138  1
]