data_[Ac4Mg5Cu2]
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
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [8.2296]
_cell_length_b [4.0290]
_cell_length_c [10.2165]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.7839]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Ac4Mg5Cu2]
_chemical_formula_sum '[Ac4 Mg5 Cu2]'
_cell_volume [338.0104]
_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
[
  Ac  Ac0  2  0.1609  0.5000  0.8583  1
  Ac  Ac1  2  0.2349  0.5000  0.4474  1
  Mg  Mg2  2  0.1952  0.0000  0.1573  1
  Mg  Mg3  2  0.4457  0.0000  0.6944  1
  Mg  Mg4  1  0.5000  0.0000  0.0000  1
  Cu  Cu5  2  0.0559  0.0000  0.6286  1
]