data_[U6Ni26]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  U  1.3800  1.7500  0.9913
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [7.4364]
_cell_length_b [7.4940]
_cell_length_c [7.4719]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [U3Ni13]
_chemical_formula_sum '[U6 Ni26]'
_cell_volume [416.3966]
_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
[
  U  U0  4  0.2490  0.0000  0.9993  1
  U  U1  2  0.0000  0.0000  0.7388  1
  Ni  Ni2  8  0.2660  0.2378  0.2513  1
  Ni  Ni3  4  0.0000  0.2320  0.4941  1
  Ni  Ni4  4  0.2542  0.0000  0.5035  1
  Ni  Ni5  4  0.5000  0.2420  0.5011  1
  Ni  Ni6  2  0.0000  0.0000  0.2614  1
  Ni  Ni7  2  0.5000  0.0000  0.2558  1
  Ni  Ni8  2  0.5000  0.0000  0.7430  1
]