data_[Tb3Nd6Ho3Se18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Ho  1.2300  1.7500  1.0410
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.3536]
_cell_length_b [7.3536]
_cell_length_c [19.5739]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [TbNd2HoSe6]
_chemical_formula_sum '[Tb3 Nd6 Ho3 Se18]'
_cell_volume [916.6597]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.3182  1.0
  Nd  Nd1  3  0.0000  0.0000  0.0194  1.0
  Nd  Nd2  3  0.0000  0.0000  0.5190  1.0
  Ho  Ho3  3  0.0000  0.0000  0.8188  1.0
  Se  Se4  9  0.0177  0.3086  0.9140  1.0
  Se  Se5  9  0.0199  0.7081  0.4145  1.0
]