data_CoGeAu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.26
_cell_length_b   9.26
_cell_length_c   9.26
_cell_angle_alpha   18.14
_cell_angle_beta   18.14
_cell_angle_gamma   18.14
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoGeAu2
_chemical_formula_sum   'Co1 Ge1 Au2'
_cell_volume   67.23
_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
  Co  Co2  1  0.0  0.0  0.0  1.0
  Ge  Ge3  1  0.0  0.0  0.66  1.0
  Au  Au0  1  0.0  0.0  0.0  1.0
  Au  Au1  1  0.0  0.0  0.32  1.0

data_CoGeAu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.06
_cell_length_b   2.92
_cell_length_c   9.26
_cell_angle_alpha   90.0
_cell_angle_beta   100.49
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CoGeAu2
_chemical_formula_sum   'Co2 Ge2 Au4'
_cell_volume   134.46
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Co  Co0  2  0.0  0.0  0.0  1.0
  Ge  Ge1  2  0.0  0.0  0.34  1.0
  Au  Au2  2  0.0  0.0  0.68  1.0
  Au  Au3  2  0.0  0.0  1.0  1.0

Co Ge Au Au 0 2 o o o 0 1 o o - 0 3 o o o 1 1 o + - 1 1 + - o 1 1 + o - 1 3 o o o 1 2 o o + 2 3 o o o 3 3 o + - 3 3 + - o 3 3 + o - 
CoAu2Ge crystallizes in the monoclinic Cm space group. Co(1) is bonded in a single-bond geometry to one Au(1) and one Ge(1) atom. The Co(1)-Au(1) bond length is 0.03 Å. The Co(1)-Ge(1) bond length is 3.13 Å. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a single-bond geometry to one Co(1) and one Au(2) atom. The Au(1)-Au(2) bond length is 2.93 Å. In the second Au site, Au(2) is bonded to one Au(1), six equivalent Au(2), and one Ge(1) atom to form distorted AuGeAu7 hexagonal bipyramids that share corners with six equivalent Au(2)GeAu7 hexagonal bipyramids, edges with six equivalent Ge(1)CoGe6Au hexagonal bipyramids, and edges with twelve equivalent Au(2)GeAu7 hexagonal bipyramids. All Au(2)-Au(2) bond lengths are 2.92 Å. The Au(2)-Ge(1) bond length is 3.17 Å. Ge(1) is bonded to one Co(1), one Au(2), and six equivalent Ge(1) atoms to form distorted GeCoGe6Au hexagonal bipyramids that share corners with six equivalent Ge(1)CoGe6Au hexagonal bipyramids, edges with six equivalent Au(2)GeAu7 hexagonal bipyramids, and edges with twelve equivalent Ge(1)CoGe6Au hexagonal bipyramids. All Ge(1)-Ge(1) bond lengths are 2.92 Å.