data_[Pr2Al2Ni6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Al  1.6100  1.2500  0.6750
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [5.5417]
_cell_length_b [7.1278]
_cell_length_c [4.4814]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [PrAlNi3]
_chemical_formula_sum '[Pr2 Al2 Ni6]'
_cell_volume [177.0151]
_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
[
  Pr  Pr0  2  0.0000  0.0000  0.5000  1
  Al  Al1  2  0.0000  0.5000  0.0000  1
  Ni  Ni2  4  0.2500  0.2500  0.0000  1
  Ni  Ni3  2  0.0000  0.5000  0.5000  1
]