data_[Cu4Ge4O10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  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 [15.2236]
_cell_length_b [3.1034]
_cell_length_c [5.7027]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.2110]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cu2Ge2O5]
_chemical_formula_sum '[Cu4 Ge4 O10]'
_cell_volume [265.9531]
_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
[
  Cu  Cu0  4  0.1670  0.5000  0.5657  1
  Ge  Ge1  4  0.1167  0.0000  0.0467  1
  O  O2  4  0.1490  0.5000  0.9028  1
  O  O3  4  0.1662  0.0000  0.3459  1
  O  O4  2  0.0000  0.0000  0.0000  1
]