The compound described by K4Au7Ge2 crystallizes in the trigonal R-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 3-coordinate geometry to three equivalent Au(1) and three equivalent Au(2) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to nine equivalent Au(2) atoms. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded to six equivalent K(1) and six equivalent Au(2) atoms to form edge-sharing AuK6Au6 cuboctahedra. In the second Au site, Au(2) is bonded in a 1-coordinate geometry to one K(1), three equivalent K(2), one Au(1), and one Ge(1) atom. Ge(1) is bonded in a 3-coordinate geometry to three equivalent Au(2) atoms. is represented by the CIF file [CIF]
data_K4Ge2Au7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.064
_cell_length_b   10.064
_cell_length_c   10.064
_cell_angle_alpha   37.776
_cell_angle_beta   37.776
_cell_angle_gamma   37.776
_symmetry_Int_Tables_number   1
_cell_volume   343.242
_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
  K  K0  1  0.683  0.683  0.683  1.0
  K  K1  1  0.317  0.317  0.317  1.0
  K  K2  1  0.810  0.810  0.810  1.0
  K  K3  1  0.190  0.190  0.190  1.0
  Ge  Ge4  1  0.545  0.545  0.545  1.0
  Ge  Ge5  1  0.455  0.455  0.455  1.0
  Au  Au6  1  0.000  0.000  0.000  1.0
  Au  Au7  1  0.223  0.223  0.795  1.0
  Au  Au8  1  0.223  0.795  0.223  1.0
  Au  Au9  1  0.795  0.223  0.223  1.0
  Au  Au10  1  0.205  0.777  0.777  1.0
  Au  Au11  1  0.777  0.777  0.205  1.0
  Au  Au12  1  0.777  0.205  0.777  1.0
[/CIF]
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The compound described by K4Au7Ge2 crystallizes in the trigonal R-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 3-coordinate geometry to three equivalent Au(1) and three equivalent Au(2) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to nine equivalent Au(2) atoms. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded to six equivalent K(1) and six equivalent Au(2) atoms to form edge-sharing AuK6Au6 cuboctahedra. In the second Au site, Au(2) is bonded in a 1-coordinate geometry to one K(1), three equivalent K(2), one Au(1), and one Ge(1) atom. Ge(1) is bonded in a 3-coordinate geometry to three equivalent Au(2) atoms. is represented by the CIF file [CIF]
data_K4Ge2Au7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.064
_cell_length_b   10.064
_cell_length_c   10.064
_cell_angle_alpha   37.776
_cell_angle_beta   37.776
_cell_angle_gamma   37.776
_symmetry_Int_Tables_number   1
_cell_volume   343.242
_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
  K  K0  1  0.683  0.683  0.683  1.0
  K  K1  1  0.317  0.317  0.317  1.0
  K  K2  1  0.810  0.810  0.810  1.0
  K  K3  1  0.190  0.190  0.190  1.0
  Ge  Ge4  1  0.545  0.545  0.545  1.0
  Ge  Ge5  1  0.455  0.455  0.455  1.0
  Au  Au6  1  0.000  0.000  0.000  1.0
  Au  Au7  1  0.223  0.223  0.795  1.0
  Au  Au8  1  0.223  0.795  0.223  1.0
  Au  Au9  1  0.795  0.223  0.223  1.0
  Au  Au10  1  0.205  0.777  0.777  1.0
  Au  Au11  1  0.777  0.777  0.205  1.0
  Au  Au12  1  0.777  0.205  0.777  1.0
[/CIF]
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