data_Ga2CuGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.9
_cell_length_b   2.9
_cell_length_c   7.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.42
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga2CuGe
_chemical_formula_sum   'Ga2 Cu1 Ge1'
_cell_volume   66.22
_cell_formula_units_Z   1
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
  Ga  Ga1  1  0.02  0.0  0.69  1.0
  Ga  Ga2  1  0.02  0.0  0.2  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Ge  Ge3  1  0.0  0.0  0.94  1.0

data_Ga2CuGe
_symmetry_space_group_name_H-M   Pm
_cell_length_a   2.9
_cell_length_b   2.9
_cell_length_c   7.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Ga2CuGe
_chemical_formula_sum   'Ga2 Cu1 Ge1'
_cell_volume   66.24
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Ga  Ga0  1  0.02  0.0  0.2  1.0
  Ga  Ga1  1  0.02  0.0  0.69  1.0
  Cu  Cu2  1  0.0  0.0  0.0  1.0
  Ge  Ge3  1  0.0  0.0  0.94  1.0

Ga Ga Cu Ge
CuGa2Ge crystallizes in the monoclinic Pm space group. The structure is zero-dimensional and consists of one CuGa2Ge cluster. Cu(1) is bonded in a distorted single-bond geometry to one Ga(2) and one Ge(1) atom. The Cu(1)-Ga(2) bond length is 1.55 Å. The Cu(1)-Ge(1) bond length is 0.44 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a single-bond geometry to one Ge(1) atom. The Ga(1)-Ge(1) bond length is 1.99 Å. In the second Ga site, Ga(2) is bonded in a single-bond geometry to one Cu(1) atom. Ge(1) is bonded in a distorted single-bond geometry to one Cu(1) and one Ga(1) atom.