data_[Ac2U2Nb2N6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  U  1.3800  1.7500  0.9913
  Nb  1.6000  1.4500  0.8200
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.5515]
_cell_length_b [3.4276]
_cell_length_c [8.3269]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.6186]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [AcUNbN3]
_chemical_formula_sum '[Ac2 U2 Nb2 N6]'
_cell_volume [211.8390]
_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  0.1658  0.7500  0.1945  1
  U  U1  2  0.3497  0.2500  0.8483  1
  Nb  Nb2  2  0.1191  0.7500  0.5857  1
  N  N3  2  0.1393  0.7500  0.8570  1
  N  N4  2  0.1801  0.2500  0.4430  1
  N  N5  2  0.4336  0.2500  0.1103  1
]