data_[Ba2Eu3Si7]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Eu  1.2000  1.8500  1.1985
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [P-62m]
_cell_length_a [9.3248]
_cell_length_b [9.3248]
_cell_length_c [4.1334]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [189]
_chemical_formula_structural [Ba2Eu3Si7]
_chemical_formula_sum '[Ba2 Eu3 Si7]'
_cell_volume [311.2568]
_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
[
  Ba  Ba0  2  0.3333  0.6667  0.0000  1.0
  Eu  Eu1  3  0.0000  0.2516  0.5000  1.0
  Si  Si2  3  0.0000  0.6003  0.5000  1.0
  Si  Si3  3  0.0000  0.7421  0.0000  1.0
  Si  Si4  1  0.0000  0.0000  0.0000  1.0
]