data_[K2Np2P2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Np  1.3600  1.7500  1.0000
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [P4/nmm]
_cell_length_a [4.3428]
_cell_length_b [4.3428]
_cell_length_c [10.8887]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [129]
_chemical_formula_structural [KNpP]
_chemical_formula_sum '[K2 Np2 P2]'
_cell_volume [205.3563]
_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
[
  K  K0  2  0.0000  0.5000  0.3134  1
  Np  Np1  2  0.0000  0.0000  0.0000  1
  P  P2  2  0.0000  0.5000  0.8312  1
]