data_[Y16Np16Tc16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Np  1.3600  1.7500  1.0000
  Tc  1.9000  1.3500  0.7417
]
_symmetry_space_group_name_H-M [Fddd]
_cell_length_a [3.2180]
_cell_length_b [12.1474]
_cell_length_c [28.1424]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [70]
_chemical_formula_structural [YNpTc]
_chemical_formula_sum '[Y16 Np16 Tc16]'
_cell_volume [1100.1070]
_cell_formula_units_Z [16]
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  16  0.0000  0.1259  0.0000  1
  Np  Np1  16  0.0000  0.0000  0.1479  1
  Tc  Tc2  16  0.0000  0.0000  0.4230  1
]