data_[Li8Cu4Si16O40]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Cu  1.9000  1.3500  0.8200
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_12_12_1]
_cell_length_a [6.8424]
_cell_length_b [9.5450]
_cell_length_c [14.3597]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [Li2Cu(Si2O5)2]
_chemical_formula_sum '[Li8 Cu4 Si16 O40]'
_cell_volume [937.8397]
_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  0.0649  0.6162  0.9704  1
  Li  Li1  4  0.1471  0.4049  0.1711  1
  Si  Si2  4  0.0148  0.9589  0.0671  1
  Cu  Cu3  4  0.0299  0.6869  0.1531  1
  Si  Si4  4  0.2159  0.3753  0.8319  1
  Si  Si5  4  0.2190  0.9029  0.7220  1
  Si  Si6  4  0.2419  0.9329  0.4029  1
  O  O7  4  0.0157  0.7943  0.0390  1
  O  O8  4  0.0220  0.8698  0.6606  1
  O  O9  4  0.0317  0.0024  0.4275  1
  O  O10  4  0.0926  0.0651  0.9859  1
  O  O11  4  0.1501  0.9902  0.8145  1
  O  O12  4  0.1512  0.9850  0.1594  1
  O  O13  4  0.1665  0.2397  0.2484  1
  O  O14  4  0.1967  0.7705  0.3732  1
  O  O15  4  0.2079  0.5868  0.2282  1
  O  O16  4  0.2163  0.4998  0.4072  1
]