data_[Ac4Co2Si2N2]
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
  Si  1.9000  1.1000  0.5400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.5570]
_cell_length_b [4.0649]
_cell_length_c [8.9275]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.9083]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Ac2CoSiN]
_chemical_formula_sum '[Ac4 Co2 Si2 N2]'
_cell_volume [223.7273]
_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  2  0.2121  0.7500  0.3901  1
  Ac  Ac1  2  0.2245  0.7500  0.9652  1
  Co  Co2  2  0.4861  0.2500  0.2508  1
  Si  Si3  2  0.3356  0.2500  0.7042  1
  N  N4  2  0.1844  0.2500  0.1735  1
]