data_[Sr4Ca4Np2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ca  1.0000  1.8000  1.1400
  Np  1.3600  1.7500  1.0000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.3564]
_cell_length_b [10.4500]
_cell_length_c [5.9669]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.5545]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr2Ca2NpO6]
_chemical_formula_sum '[Sr4 Ca4 Np2 O12]'
_cell_volume [371.1124]
_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
[
  Sr  Sr0  4  0.0000  0.3429  0.5000  1
  Ca  Ca1  4  0.0000  0.1744  0.0000  1
  Np  Np2  2  0.0000  0.0000  0.5000  1
  O  O3  8  0.2140  0.1673  0.7354  1
  O  O4  4  0.1924  0.0000  0.2681  1
]