data_[Sr2Ac6Sb8]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [9.5893]
_cell_length_b [13.5666]
_cell_length_c [4.7999]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [SrAc3Sb4]
_chemical_formula_sum '[Sr2 Ac6 Sb8]'
_cell_volume [624.4331]
_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  2  0.0000  0.0000  0.5000  1
  Ac  Ac1  4  0.2500  0.2500  0.0000  1
  Ac  Ac2  2  0.0000  0.5000  0.5000  1
  Sb  Sb3  4  0.0000  0.2506  0.5000  1
  Sb  Sb4  4  0.2480  0.5000  0.0000  1
]