data_[Ac4Pm2Tl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Pm  1.1300  1.8500  1.1100
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.4589]
_cell_length_b [6.6006]
_cell_length_c [11.0004]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.6851]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Ac2PmTl4]
_chemical_formula_sum '[Ac4 Pm2 Tl8]'
_cell_volume [455.6622]
_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  0.1303  0.7500  0.4173  1
  Ac  Ac1  2  0.3391  0.2500  0.9944  1
  Pm  Pm2  2  0.0359  0.7500  0.8039  1
  Tl  Tl3  4  0.4048  0.5001  0.7142  1
  Tl  Tl4  2  0.1918  0.7500  0.1118  1
  Tl  Tl5  2  0.3099  0.2500  0.4518  1
]