data_[Rb4Np4P4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Np  1.3600  1.7500  1.0000
  P  2.1900  1.0000  0.5500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.3651]
_cell_length_b [9.8294]
_cell_length_c [7.9682]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.7705]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbNpPO5]
_chemical_formula_sum '[Rb4 Np4 P4 O20]'
_cell_volume [523.7747]
_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
[
  Rb  Rb0  4  0.0000  0.3375  0.2500  1
  Np  Np1  4  0.0000  0.0000  0.0000  1
  P  P2  4  0.0000  0.3116  0.7500  1
  O  O3  8  0.0743  0.2192  0.6307  1
  O  O4  8  0.1739  0.4051  0.8784  1
  O  O5  4  0.0000  0.0612  0.2500  1
]