data_[Li4V2Si2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  V  1.6300  1.3500  0.7775
  Si  1.9000  1.1000  0.5400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [6.7571]
_cell_length_b [5.2402]
_cell_length_c [4.7862]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [Li2VSiO4]
_chemical_formula_sum '[Li4 V2 Si2 O8]'
_cell_volume [169.4715]
_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
[
  Li  Li0  4  0.2497  0.6759  0.9863  1.0
  V  V1  2  0.0000  0.1971  0.9664  1.0
  Si  Si2  2  0.0000  0.8255  0.5042  1.0
  O  O3  4  0.2037  0.6862  0.3912  1.0
  O  O4  2  0.0000  0.1367  0.4247  1.0
  O  O5  2  0.0000  0.8089  0.8499  1.0
]