data_NpAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.58
_cell_length_b   4.58
_cell_length_c   5.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NpAg
_chemical_formula_sum   'Np2 Ag2'
_cell_volume   104.04
_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  Np2  1  0.29  0.32  0.43  1.0
  Np  Np3  1  0.0  0.64  0.3  1.0
  Ag  Ag0  1  0.29  0.32  0.3  1.0
  Ag  Ag1  1  0.0  0.64  0.43  1.0

data_NpAg
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.58
_cell_length_b   4.58
_cell_length_c   5.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   NpAg
_chemical_formula_sum   'Np2 Ag2'
_cell_volume   104.04
_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  0.14  0.84  0.07  1.0
  Ag  Ag1  2  0.14  0.84  0.93  1.0

Np Np Ag Ag