data_[Sr20N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [19.0696]
_cell_length_b [8.1018]
_cell_length_c [6.9706]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.2768]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Sr5N2]
_chemical_formula_sum '[Sr20 N8]'
_cell_volume [1072.3749]
_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
[
  Sr  Sr0  8  0.1062  0.1481  0.4012  1.0
  Sr  Sr1  8  0.1774  0.4210  0.8212  1.0
  Sr  Sr2  4  0.0000  0.4562  0.7500  1.0
  N  N3  8  0.0989  0.4194  0.5156  1.0
]