data_[Ac6U2N8]
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
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [6.5520]
_cell_length_b [7.5671]
_cell_length_c [6.4203]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.6926]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [Ac3UN4]
_chemical_formula_sum '[Ac6 U2 N8]'
_cell_volume [301.5265]
_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  0.0000  0.3753  0.7500  1
  Ac  Ac1  2  0.5000  0.1233  0.7500  1
  Ac  Ac2  2  0.5000  0.3691  0.2500  1
  U  U3  2  0.0000  0.1193  0.2500  1
  N  N4  4  0.1976  0.1014  0.0016  1
  N  N5  4  0.2061  0.3267  0.4526  1
]