data_[Ac4Pm8Nd16Tm4]
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
  Nd  1.1400  1.8500  1.2765
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.0545]
_cell_length_b [12.0511]
_cell_length_c [13.6118]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [AcPm2Nd4Tm]
_chemical_formula_sum '[Ac4 Pm8 Nd16 Tm4]'
_cell_volume [1157.2011]
_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
  Pm  Pm1  4  0.0000  0.0000  0.5000  1
  Pm  Pm2  4  0.2500  0.2500  0.2500  1
  Nd  Nd3  8  0.0000  0.0042  0.7421  1
  Nd  Nd4  8  0.2342  0.7500  0.4939  1
  Tm  Tm5  4  0.2500  0.2500  0.7500  1
]