data_[Ac2Tb12Pm6Tm4]
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 [C2/m]
_cell_length_a [6.2424]
_cell_length_b [10.8093]
_cell_length_c [11.9647]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.9976]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [AcTb6Pm3Tm2]
_chemical_formula_sum '[Ac2 Tb12 Pm6 Tm4]'
_cell_volume [795.0690]
_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
[
  Tb  Tb0  8  0.2478  0.3316  0.7491  1
  Tb  Tb1  4  0.2472  0.5000  0.2512  1
  Ac  Ac2  2  0.0000  0.0000  0.0000  1
  Pm  Pm3  4  0.0000  0.1671  0.5000  1
  Pm  Pm4  2  0.0000  0.5000  0.5000  1
  Tm  Tm5  4  0.0000  0.3332  0.0000  1
]