data_[Sr4Ac8Bi6N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ac  1.1000  1.9500  1.2600
  Bi  2.0200  1.6000  1.0350
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [5.1987]
_cell_length_b [5.1987]
_cell_length_c [27.5104]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Sr2Ac4Bi3N2]
_chemical_formula_sum '[Sr4 Ac8 Bi6 N4]'
_cell_volume [743.5003]
_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
[
  Sr  Sr0  4  0.0000  0.0000  0.3043  1
  Ac  Ac1  8  0.0000  0.5000  0.0870  1
  Bi  Bi2  4  0.0000  0.0000  0.1777  1
  Bi  Bi3  2  0.0000  0.0000  0.0000  1
  N  N4  4  0.0000  0.0000  0.3976  1
]