data_[Ac6Mg4Ni8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Mg  1.3100  1.5000  0.8600
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.8311]
_cell_length_b [4.1825]
_cell_length_c [9.2709]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.2413]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac3(MgNi2)2]
_chemical_formula_sum '[Ac6 Mg4 Ni8]'
_cell_volume [416.6298]
_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  0.1258  0.5000  0.3780  1
  Ac  Ac1  2  0.0000  0.0000  0.0000  1
  Mg  Mg2  4  0.1759  0.5000  0.7860  1
  Ni  Ni3  4  0.0777  0.0000  0.6168  1
  Ni  Ni4  4  0.2214  0.5000  0.0684  1
]