data_[Er4Sc2Ni18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Sc  1.3600  1.6000  0.8850
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [P6_3/mmc]
_cell_length_a [4.8936]
_cell_length_b [4.8936]
_cell_length_c [16.1210]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [194]
_chemical_formula_structural [Er2ScNi9]
_chemical_formula_sum '[Er4 Sc2 Ni18]'
_cell_volume [334.3300]
_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
[
  Er  Er0  4  0.3333  0.6667  0.5436  1
  Sc  Sc1  2  0.3333  0.6667  0.7500  1
  Ni  Ni2  12  0.1672  0.3345  0.1272  1
  Ni  Ni3  2  0.0000  0.0000  0.0000  1
  Ni  Ni4  2  0.0000  0.0000  0.2500  1
  Ni  Ni5  2  0.3333  0.6667  0.2500  1
]