data_[Ac4Mn4Si4N2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Mn  1.5500  1.4000  0.6483
  Si  1.9000  1.1000  0.5400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.3161]
_cell_length_b [4.1016]
_cell_length_c [7.3444]
_cell_angle_alpha [90.0000]
_cell_angle_beta [127.5320]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac2Mn2Si2N]
_chemical_formula_sum '[Ac4 Mn4 Si4 N2]'
_cell_volume [270.3247]
_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  0.0563  0.5000  0.3016  1
  Mn  Mn1  4  0.1851  0.0000  0.0783  1
  Si  Si2  4  0.1936  0.0000  0.7674  1
  N  N3  2  0.0000  0.0000  0.0000  1
]