data_[Na8V4Ge4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  V  1.6300  1.3500  0.7775
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.0816]
_cell_length_b [12.0957]
_cell_length_c [11.6866]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Na2VGeO5]
_chemical_formula_sum '[Na8 V4 Ge4 O20]'
_cell_volume [435.6059]
_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
[
  Na  Na0  4  0.0000  0.0746  0.6781  1
  Na  Na1  4  0.0000  0.1602  0.2843  1
  V  V2  4  0.0000  0.2421  0.0318  1
  Ge  Ge3  4  0.0000  0.4610  0.4395  1
  O  O4  4  0.0000  0.0614  0.0262  1
  O  O5  4  0.0000  0.2670  0.6380  1
  O  O6  4  0.0000  0.3030  0.4219  1
  O  O7  4  0.0000  0.3849  0.0043  1
  O  O8  4  0.0000  0.4929  0.7998  1
]