data_[Np12Ge4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [8.9783]
_cell_length_b [7.7050]
_cell_length_c [4.3207]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Np3Ge]
_chemical_formula_sum '[Np12 Ge4]'
_cell_volume [298.8932]
_cell_formula_units_Z [4]
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  8  0.2136  0.3159  0.7500  1
  Np  Np1  4  0.0000  0.1045  0.7500  1
  Ge  Ge2  4  0.0000  0.3678  0.2500  1
]