data_[Er4Sb4N4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Sb  2.0500  1.4500  0.8300
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pca2_1]
_cell_length_a [6.7284]
_cell_length_b [7.2787]
_cell_length_c [5.4405]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [29]
_chemical_formula_structural [ErSbNO]
_chemical_formula_sum '[Er4 Sb4 N4 O4]'
_cell_volume [266.4417]
_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
[
  Er  Er0  4  0.0877  0.8519  0.9769  1
  Sb  Sb1  4  0.1210  0.3226  0.9822  1
  N  N2  4  0.0889  0.8870  0.5581  1
  O  O3  4  0.0608  0.5896  0.1853  1
]