data_[Ac8Cu4Ge8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Cu  1.9000  1.3500  0.8200
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.6827]
_cell_length_b [4.3461]
_cell_length_c [11.3460]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.3879]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac2CuGe2]
_chemical_formula_sum '[Ac8 Cu4 Ge8]'
_cell_volume [536.4143]
_cell_formula_units_Z [4]
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  0.0885  0.0000  0.9028  1
  Ac  Ac1  4  0.1963  0.5000  0.6398  1
  Cu  Cu2  4  0.0734  0.5000  0.3186  1
  Ge  Ge3  4  0.0412  0.0000  0.4085  1
  Ge  Ge4  4  0.1533  0.5000  0.1422  1
]