data_NpC3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.69
_cell_length_b   4.69
_cell_length_c   4.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NpC3
_chemical_formula_sum   'Np2 C6'
_cell_volume   92.24
_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
  Np  Np6  1  0.0  0.71  0.21  1.0
  Np  Np7  1  0.34  0.35  0.64  1.0
  C  C0  1  0.34  0.22  0.21  1.0
  C  C1  1  0.73  0.42  0.21  1.0
  C  C2  1  0.96  0.42  0.21  1.0
  C  C3  1  0.39  0.64  0.64  1.0
  C  C4  1  0.61  0.64  0.64  1.0
  C  C5  1  0.0  0.84  0.64  1.0

data_NpC3
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.69
_cell_length_b   4.69
_cell_length_c   4.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   NpC3
_chemical_formula_sum   'Np2 C6'
_cell_volume   92.24
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Np  Np0  2  0.17  0.32  0.21  1.0
  C  C1  2  0.17  0.19  0.79  1.0
  C  C2  2  0.21  0.61  0.21  1.0
  C  C3  2  0.44  0.61  0.21  1.0

Np Np C C C C C C