data_NpCo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.34
_cell_length_b   5.34
_cell_length_c   3.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NpCo2
_chemical_formula_sum   'Np2 Co4'
_cell_volume   101.45
_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  Np4  1  0.0  0.0  0.0  1.0
  Np  Np5  1  0.67  0.67  0.78  1.0
  Co  Co0  1  0.58  0.58  0.0  1.0
  Co  Co1  1  0.76  0.76  0.0  1.0
  Co  Co2  1  0.25  0.09  0.78  1.0
  Co  Co3  1  0.09  0.25  0.78  1.0

data_NpCo2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.55
_cell_length_b   7.55
_cell_length_c   3.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NpCo2
_chemical_formula_sum   'Np4 Co8'
_cell_volume   202.91
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  '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  0.0  1.0
  Np  Np1  2  0.17  0.5  0.78  1.0
  Co  Co2  4  0.17  0.08  0.78  1.0
  Co  Co3  2  0.08  0.5  0.0  1.0
  Co  Co4  2  0.26  0.5  0.0  1.0

Np Np Co Co Co Co
Np Np Co Co Co Co 0 3 - - o 0 5 o o - 0 4 o o - 1 2 o o + 1 3 o o + 4 5 o o o 