data_[Ac4Ce8Zr4N16]
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
  Zr  1.3300  1.5500  0.8600
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.1016]
_cell_length_b [7.1465]
_cell_length_c [10.1467]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [AcCe2ZrN4]
_chemical_formula_sum '[Ac4 Ce8 Zr4 N16]'
_cell_volume [514.9656]
_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  0.0000  0.0000  0.0000  1
  Ce  Ce1  4  0.0000  0.0000  0.5000  1
  Ce  Ce2  4  0.2500  0.2500  0.7500  1
  Zr  Zr3  4  0.2500  0.2500  0.2500  1
  N  N4  8  0.0000  0.0182  0.2586  1
  N  N5  8  0.2276  0.2500  0.4805  1
]