data_[Na4Eu4As4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Eu  1.2000  1.8500  1.1985
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.8883]
_cell_length_b [9.3088]
_cell_length_c [7.2102]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [NaEuAsO4]
_chemical_formula_sum '[Na4 Eu4 As4 O16]'
_cell_volume [395.2090]
_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
[
  Na  Na0  4  0.0000  0.3194  0.7500  1
  Eu  Eu1  4  0.0000  0.0000  0.0000  1
  As  As2  4  0.0000  0.3529  0.2500  1
  O  O3  8  0.0000  0.2500  0.0558  1
  O  O4  8  0.2340  0.4655  0.2500  1
]