data_NpU
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.32
_cell_length_b   5.32
_cell_length_c   5.32
_cell_angle_alpha   34.26
_cell_angle_beta   34.26
_cell_angle_gamma   34.26
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NpU
_chemical_formula_sum   'Np1 U1'
_cell_volume   42.46
_cell_formula_units_Z   1
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  Np0  1  0.0  0.0  0.5  1.0
  U  U1  1  0.0  0.0  0.0  1.0

data_NpU
_symmetry_space_group_name_H-M   C2/m
_cell_length_a   5.42
_cell_length_b   3.13
_cell_length_c   5.32
_cell_angle_alpha   90.0
_cell_angle_beta   109.88
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   12
_chemical_formula_structural   NpU
_chemical_formula_sum   'Np2 U2'
_cell_volume   84.92
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, -z'
  3  '-x, y, -z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z'
  6  '-x+1/2, -y+1/2, -z'
  7  '-x+1/2, y+1/2, -z'
  8  'x+1/2, -y+1/2, 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  0.0  0.0  0.5  1.0
  U  U1  2  0.0  0.0  0.0  1.0

Np U