data_[Ac4Ce2Si4Ni14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Ce  1.1200  1.8500  1.0800
  Si  1.9000  1.1000  0.5400
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.8693]
_cell_length_b [5.7709]
_cell_length_c [12.5079]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.2988]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac2CeSi2Ni7]
_chemical_formula_sum '[Ac4 Ce2 Si4 Ni14]'
_cell_volume [421.1054]
_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  0.0837  0.0000  0.3514  1
  Ce  Ce1  2  0.0000  0.0000  0.0000  1
  Si  Si2  4  0.0601  0.5000  0.2261  1
  Ni  Ni3  8  0.2154  0.2563  0.8580  1
  Ni  Ni4  4  0.0796  0.5000  0.4160  1
  Ni  Ni5  2  0.0000  0.5000  0.0000  1
]