data_[Li4Sn4As4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Sn  1.9600  1.4500  0.8300
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.7181]
_cell_length_b [8.4303]
_cell_length_c [7.4137]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.2510]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [LiSnAsO5]
_chemical_formula_sum '[Li4 Sn4 As4 O20]'
_cell_volume [424.9208]
_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
[
  Li  Li0  4  0.0000  0.3114  0.7500  1
  Sn  Sn1  4  0.0000  0.0000  0.0000  1
  As  As2  4  0.0000  0.3614  0.2500  1
  O  O3  8  0.0073  0.2484  0.0607  1
  O  O4  8  0.1873  0.4992  0.3505  1
  O  O5  4  0.0000  0.0846  0.7500  1
]