data_[Sr9Er3U9N24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Er  1.2400  1.7500  1.0300
  U  1.3800  1.7500  0.9913
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [7.0110]
_cell_length_b [7.0110]
_cell_length_c [18.0065]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Sr3ErU3N8]
_chemical_formula_sum '[Sr9 Er3 U9 N24]'
_cell_volume [766.5065]
_cell_formula_units_Z [3]
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  9  0.0000  0.5000  0.5000  1
  Er  Er1  3  -0.0000  -0.0000  0.0000  1
  U  U2  9  0.0000  0.5000  0.0000  1
  N  N3  18  0.0150  0.5075  0.2741  1
  N  N4  6  0.0000  0.0000  0.2658  1
]