data_[Eu2As4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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 [C2/m]
_cell_length_a [7.3136]
_cell_length_b [4.1758]
_cell_length_c [8.6491]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.1625]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Eu(AsO2)2]
_chemical_formula_sum '[Eu2 As4 O8]'
_cell_volume [260.0029]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.0000  1.0
  As  As1  4  0.2188  0.0000  0.6842  1.0
  O  O2  4  0.0108  0.0000  0.3035  1.0
  O  O3  4  0.1870  0.5000  0.1142  1.0
]