data_GeC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.04
_cell_length_b   5.0
_cell_length_c   3.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GeC2
_chemical_formula_sum   'Ge2 C4'
_cell_volume   63.16
_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
  Ge  Ge4  1  0.0  0.0  0.0  1.0
  Ge  Ge5  1  0.02  0.5  0.56  1.0
  C  C0  1  0.52  0.92  0.0  1.0
  C  C1  1  0.52  0.09  0.0  1.0
  C  C2  1  0.54  0.59  0.56  1.0
  C  C3  1  0.5  0.42  0.56  1.0

data_GeC2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.12
_cell_length_b   4.04
_cell_length_c   5.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GeC2
_chemical_formula_sum   'Ge2 C4'
_cell_volume   63.16
_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
  Ge  Ge0  1  0.0  0.0  0.0  1.0
  Ge  Ge1  1  0.56  0.02  0.5  1.0
  C  C2  1  0.0  0.52  0.09  1.0
  C  C3  1  0.0  0.52  0.92  1.0
  C  C4  1  0.56  0.5  0.42  1.0
  C  C5  1  0.56  0.54  0.59  1.0

Ge Ge C C C C