data_[Li4Y2Si2Ge4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Y  1.2200  1.8000  1.0400
  Si  1.9000  1.1000  0.5400
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.0227]
_cell_length_b [7.6399]
_cell_length_c [7.7095]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Li2YSiGe2]
_chemical_formula_sum '[Li4 Y2 Si2 Ge4]'
_cell_volume [236.9376]
_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  2  0.0000  0.1448  0.1609  1
  Li  Li1  2  0.5000  0.0998  0.4992  1
  Y  Y2  2  0.0000  0.4755  0.4977  1
  Si  Si3  2  0.5000  0.3454  0.7594  1
  Ge  Ge4  2  0.0000  0.1638  0.7990  1
  Ge  Ge5  2  0.5000  0.3423  0.2383  1
]