data_[Ac4Tb4Pm8Tm16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [6.8784]
_cell_length_b [11.8910]
_cell_length_c [13.4163]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [AcTb(PmTm2)2]
_chemical_formula_sum '[Ac4 Tb4 Pm8 Tm16]'
_cell_volume [1097.3378]
_cell_formula_units_Z [4]
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  0.0000  0.0000  0.0000  1
  Tb  Tb1  4  0.2500  0.2500  0.7500  1
  Pm  Pm2  4  0.0000  0.0000  0.5000  1
  Pm  Pm3  4  0.2500  0.2500  0.2500  1
  Tm  Tm4  8  0.0000  0.0031  0.7418  1
  Tm  Tm5  8  0.2372  0.2500  0.5029  1
]