data_[Na2Ac2Sn2Te6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ac  1.1000  1.9500  1.2600
  Sn  1.9600  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.6546]
_cell_length_b [4.7177]
_cell_length_c [10.4365]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.0945]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaAcSnTe3]
_chemical_formula_sum '[Na2 Ac2 Sn2 Te6]'
_cell_volume [400.1811]
_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
[
  Na  Na0  2  0.4714  0.2500  0.6136  1
  Ac  Ac1  2  0.0074  0.7500  0.7364  1
  Sn  Sn2  2  0.4067  0.2500  0.1407  1
  Te  Te3  2  0.1548  0.7500  0.0965  1
  Te  Te4  2  0.2125  0.7500  0.4937  1
  Te  Te5  2  0.3115  0.2500  0.8466  1
]