data_[Ca4Cu4Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Cu  1.9000  1.3500  0.8200
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [6.9572]
_cell_length_b [4.2334]
_cell_length_c [7.2186]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [CaCuNi]
_chemical_formula_sum '[Ca4 Cu4 Ni4]'
_cell_volume [212.6075]
_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
[
  Ca  Ca0  4  0.0032  0.7500  0.3027  1.0
  Cu  Cu1  4  0.1846  0.7500  0.9117  1.0
  Ni  Ni2  4  0.1867  0.2500  0.0882  1.0
]