data_[Y3Cu3Ni3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Cu  1.9000  1.3500  0.8200
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [P-62m]
_cell_length_a [6.8372]
_cell_length_b [6.8372]
_cell_length_c [3.7685]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [189]
_chemical_formula_structural [YCuNi]
_chemical_formula_sum '[Y3 Cu3 Ni3]'
_cell_volume [152.5662]
_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
[
  Y  Y0  3  0.0000  0.4001  0.0000  1.0
  Cu  Cu1  2  0.3333  0.6667  0.5000  1.0
  Cu  Cu2  1  0.0000  0.0000  0.0000  1.0
  Ni  Ni3  3  0.0000  0.7677  0.5000  1.0
]