data_[Ca6Hf4Np2N12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Hf  1.3000  1.5500  0.8500
  Np  1.3600  1.7500  1.0000
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.7920]
_cell_length_b [3.3491]
_cell_length_c [6.8549]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.9607]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ca3Hf2NpN6]
_chemical_formula_sum '[Ca6 Hf4 Np2 N12]'
_cell_volume [328.0820]
_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
[
  Ca  Ca0  4  0.1690  0.0000  0.8316  1
  Ca  Ca1  2  0.0000  0.5000  0.5000  1
  Hf  Hf2  4  0.1693  0.0000  0.3415  1
  Np  Np3  2  0.0000  0.5000  0.0000  1
  N  N4  4  0.0108  0.0000  0.2363  1
  N  N5  4  0.1590  0.5000  0.1091  1
  N  N6  4  0.1758  0.5000  0.5656  1
]