data_[Nb2Sn2Ge4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  Sn  1.9600  1.4500  0.8300
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.3015]
_cell_length_b [5.6578]
_cell_length_c [6.7873]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0842]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NbSn(GeO4)2]
_chemical_formula_sum '[Nb2 Sn2 Ge4 O16]'
_cell_volume [318.7851]
_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
[
  Nb  Nb0  2  0.0000  0.0000  0.0000  1
  Sn  Sn1  2  0.0000  0.0000  0.5000  1
  Ge  Ge2  4  0.1484  0.5000  0.2550  1
  O  O3  8  0.0249  0.2367  0.2481  1
  O  O4  4  0.2333  0.0000  0.9589  1
  O  O5  4  0.2434  0.0000  0.5257  1
]