data_[Eu3Si6N4O9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Eu  1.2000  1.8500  1.1985
  Si  1.9000  1.1000  0.5400
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P3]
_cell_length_a [7.1708]
_cell_length_b [7.1708]
_cell_length_c [6.6600]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [143]
_chemical_formula_structural [Eu3Si6N4O9]
_chemical_formula_sum '[Eu3 Si6 N4 O9]'
_cell_volume [296.5811]
_cell_formula_units_Z [1]
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
[
  Eu  Eu0  1  0.0000  0.0000  0.5213  1
  Eu  Eu1  1  0.3333  0.6667  0.4167  1
  Eu  Eu2  1  0.6667  0.3333  0.3749  1
  Si  Si3  3  0.0393  0.7815  0.0635  1
  Si  Si4  3  0.4466  0.0708  0.8390  1
  N  N5  3  0.4233  0.2950  0.9019  1
  N  N6  1  0.0000  0.0000  0.0226  1
  O  O7  3  0.0068  0.7073  0.2972  1
  O  O8  3  0.1207  0.4157  0.0022  1
  O  O9  3  0.3797  0.0077  0.6063  1
]