data_[Li4V2Si2O10]
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 [P4/nmm]
_cell_length_a [6.4223]
_cell_length_b [6.4223]
_cell_length_c [4.5334]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [129]
_chemical_formula_structural [Li2VSiO5]
_chemical_formula_sum '[Li4 V2 Si2 O10]'
_cell_volume [186.9831]
_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  0.2500  0.2500  0.5000  1.0
  V  V1  2  0.0000  0.5000  0.0836  1.0
  Si  Si2  2  0.0000  0.0000  0.0000  1.0
  O  O3  8  0.0000  0.2056  0.2172  1.0
  O  O4  2  0.0000  0.5000  0.7126  1.0
]