data_[Li4Nb2Ge2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Nb  1.6000  1.4500  0.8200
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [6.7596]
_cell_length_b [8.1751]
_cell_length_c [4.3409]
_cell_angle_alpha [90.0000]
_cell_angle_beta [126.9886]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Li2NbGeO4]
_chemical_formula_sum '[Li4 Nb2 Ge2 O8]'
_cell_volume [191.6045]
_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  0.0115  0.2442  0.4297  1
  Nb  Nb1  2  0.0218  0.5000  0.9481  1
  Ge  Ge2  2  0.0770  0.0000  0.0035  1
  O  O3  4  0.1392  0.2768  0.0823  1
  O  O4  2  0.1503  0.0000  0.6296  1
  O  O5  2  0.4495  0.0000  0.3948  1
]