data_[Na2La4Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  La  1.1000  1.9500  1.1720
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [8.3921]
_cell_length_b [8.3921]
_cell_length_c [3.4159]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Na(LaNi)2]
_chemical_formula_sum '[Na2 La4 Ni4]'
_cell_volume [240.5716]
_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
[
  Na  Na0  2  0.0000  0.0000  0.0000  1
  La  La1  4  0.1468  0.3532  0.0000  1
  Ni  Ni2  4  0.1388  0.6388  0.5000  1
]