data_[Ac4Bi2Se10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Pbam]
_cell_length_a [8.2866]
_cell_length_b [12.3809]
_cell_length_c [4.4731]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [55]
_chemical_formula_structural [Ac2BiSe5]
_chemical_formula_sum '[Ac4 Bi2 Se10]'
_cell_volume [458.9226]
_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  4  0.0787  0.3292  0.5000  1
  Bi  Bi1  2  0.0000  0.0000  0.0000  1
  Se  Se2  4  0.1467  0.7868  0.0000  1
  Se  Se3  4  0.2086  0.0639  0.5000  1
  Se  Se4  2  0.0000  0.5000  0.0000  1
]