The compound described by Ca3Au8Ge3 crystallizes in the monoclinic P2/m space group. There are four inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 16-coordinate geometry to one Au(1), one Au(3), one Au(9), two equivalent Au(2), two equivalent Au(4), two equivalent Au(5), two equivalent Au(8), one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Ca site, Ca(2) is bonded in a 14-coordinate geometry to one Au(2), two equivalent Au(1), two equivalent Au(3), two equivalent Au(6), two equivalent Au(7), two equivalent Au(9), one Ge(2), and two equivalent Ge(1) atoms. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to two equivalent Au(2), four equivalent Au(3), four equivalent Au(5), and two equivalent Ge(3) atoms. In the fourth Ca site, Ca(4) is bonded in a 8-coordinate geometry to two equivalent Au(1), two equivalent Au(9), four equivalent Au(4), and four equivalent Au(6) atoms. There are nine inequivalent Au sites. In the first Au site, Au(1) is bonded in a 10-coordinate geometry to one Ca(1), one Ca(4), two equivalent Ca(2), one Au(3), one Au(7), two equivalent Au(6), and two equivalent Ge(2) atoms. In the second Au site, Au(2) is bonded in a 10-coordinate geometry to one Ca(2), one Ca(3), two equivalent Ca(1), one Au(4), one Au(8), two equivalent Au(5), and two equivalent Ge(1) atoms. In the third Au site, Au(3) is bonded in a 7-coordinate geometry to one Ca(1), two equivalent Ca(2), two equivalent Ca(3), one Au(1), one Au(5), one Ge(1), and two equivalent Ge(3) atoms. In the fourth Au site, Au(4) is bonded in a 1-coordinate geometry to two equivalent Ca(1), two equivalent Ca(4), one Au(2), one Au(6), and one Ge(2) atom. In the fifth Au site, Au(5) is bonded to two equivalent Ca(1), two equivalent Ca(3), one Au(3), two equivalent Au(2), two equivalent Au(8), one Ge(1), and two equivalent Ge(3) atoms to form a mixture of distorted edge, corner, and face-sharing AuCa4Ge3Au5 cuboctahedra. In the sixth Au site, Au(6) is bonded to two equivalent Ca(2), two equivalent Ca(4), one Au(4), two equivalent Au(1), two equivalent Au(7), two equivalent Au(9), and one Ge(2) atom to form distorted AuCa4GeAu7 cuboctahedra that share corners with four equivalent Au(6)Ca4GeAu7 cuboctahedra,  an edgeedge with one Au(6)Ca4GeAu7 cuboctahedra, faces with two equivalent Au(7)Ca4Au8 cuboctahedra, and faces with three equivalent Au(6)Ca4GeAu7 cuboctahedra. In the seventh Au site, Au(7) is bonded to four equivalent Ca(2), two equivalent Au(1), two equivalent Au(9), and four equivalent Au(6) atoms to form AuCa4Au8 cuboctahedra that share faces with two equivalent Au(7)Ca4Au8 cuboctahedra and faces with four equivalent Au(6)Ca4GeAu7 cuboctahedra. In the eighth Au site, Au(8) is bonded in a distorted linear geometry to four equivalent Ca(1), two equivalent Au(2), four equivalent Au(5), and two equivalent Ge(3) atoms. In the ninth Au site, Au(9) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(4), two equivalent Ca(2), one Au(7), two equivalent Au(6), and one Ge(1) atom. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 5-coordinate geometry to one Ca(1), two equivalent Ca(2), one Au(3), one Au(5), one Au(9), and two equivalent Au(2) atoms. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to one Ca(2), two equivalent Ca(1), one Au(4), one Au(6), two equivalent Au(1), and one Ge(3) atom. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Ca(3), two equivalent Ca(1), one Au(8), two equivalent Au(3), two equivalent Au(5), and one Ge(2) atom. is represented by the CIF card [CIF]
data_Ca3Ge3Au8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.540
_cell_length_b   9.610
_cell_length_c   13.539
_cell_angle_alpha   89.043
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   590.647
_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
  Ca  Ca0  1  0.500  0.999  0.189  1.0
  Ca  Ca1  1  0.500  0.001  0.811  1.0
  Ca  Ca2  1  0.000  0.495  0.312  1.0
  Ca  Ca3  1  0.000  0.505  0.688  1.0
  Ca  Ca4  1  0.000  0.500  0.000  1.0
  Ca  Ca5  1  0.500  0.000  0.500  1.0
  Ge  Ge6  1  0.500  0.349  0.180  1.0
  Ge  Ge7  1  0.500  0.651  0.820  1.0
  Ge  Ge8  1  0.000  0.850  0.315  1.0
  Ge  Ge9  1  0.000  0.150  0.685  1.0
  Ge  Ge10  1  0.000  0.779  0.126  1.0
  Ge  Ge11  1  0.000  0.221  0.874  1.0
  Au  Au12  1  0.500  0.736  0.362  1.0
  Au  Au13  1  0.500  0.264  0.638  1.0
  Au  Au14  1  0.000  0.239  0.137  1.0
  Au  Au15  1  0.000  0.761  0.863  1.0
  Au  Au16  1  0.500  0.387  0.840  1.0
  Au  Au17  1  0.500  0.613  0.160  1.0
  Au  Au18  1  0.000  0.890  0.659  1.0
  Au  Au19  1  0.000  0.110  0.341  1.0
  Au  Au20  1  0.500  0.206  0.004  1.0
  Au  Au21  1  0.500  0.794  0.996  1.0
  Au  Au22  1  0.000  0.704  0.496  1.0
  Au  Au23  1  0.000  0.296  0.504  1.0
  Au  Au24  1  0.500  0.500  0.500  1.0
  Au  Au25  1  0.000  0.000  0.000  1.0
  Au  Au26  1  0.500  0.280  0.368  1.0
  Au  Au27  1  0.500  0.720  0.632  1.0
[/CIF]
.
The compound described by Ca3Au8Ge3 crystallizes in the monoclinic P2/m space group. There are four inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 16-coordinate geometry to one Au(1), one Au(3), one Au(9), two equivalent Au(2), two equivalent Au(4), two equivalent Au(5), two equivalent Au(8), one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Ca site, Ca(2) is bonded in a 14-coordinate geometry to one Au(2), two equivalent Au(1), two equivalent Au(3), two equivalent Au(6), two equivalent Au(7), two equivalent Au(9), one Ge(2), and two equivalent Ge(1) atoms. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to two equivalent Au(2), four equivalent Au(3), four equivalent Au(5), and two equivalent Ge(3) atoms. In the fourth Ca site, Ca(4) is bonded in a 8-coordinate geometry to two equivalent Au(1), two equivalent Au(9), four equivalent Au(4), and four equivalent Au(6) atoms. There are nine inequivalent Au sites. In the first Au site, Au(1) is bonded in a 10-coordinate geometry to one Ca(1), one Ca(4), two equivalent Ca(2), one Au(3), one Au(7), two equivalent Au(6), and two equivalent Ge(2) atoms. In the second Au site, Au(2) is bonded in a 10-coordinate geometry to one Ca(2), one Ca(3), two equivalent Ca(1), one Au(4), one Au(8), two equivalent Au(5), and two equivalent Ge(1) atoms. In the third Au site, Au(3) is bonded in a 7-coordinate geometry to one Ca(1), two equivalent Ca(2), two equivalent Ca(3), one Au(1), one Au(5), one Ge(1), and two equivalent Ge(3) atoms. In the fourth Au site, Au(4) is bonded in a 1-coordinate geometry to two equivalent Ca(1), two equivalent Ca(4), one Au(2), one Au(6), and one Ge(2) atom. In the fifth Au site, Au(5) is bonded to two equivalent Ca(1), two equivalent Ca(3), one Au(3), two equivalent Au(2), two equivalent Au(8), one Ge(1), and two equivalent Ge(3) atoms to form a mixture of distorted edge, corner, and face-sharing AuCa4Ge3Au5 cuboctahedra. In the sixth Au site, Au(6) is bonded to two equivalent Ca(2), two equivalent Ca(4), one Au(4), two equivalent Au(1), two equivalent Au(7), two equivalent Au(9), and one Ge(2) atom to form distorted AuCa4GeAu7 cuboctahedra that share corners with four equivalent Au(6)Ca4GeAu7 cuboctahedra,  an edgeedge with one Au(6)Ca4GeAu7 cuboctahedra, faces with two equivalent Au(7)Ca4Au8 cuboctahedra, and faces with three equivalent Au(6)Ca4GeAu7 cuboctahedra. In the seventh Au site, Au(7) is bonded to four equivalent Ca(2), two equivalent Au(1), two equivalent Au(9), and four equivalent Au(6) atoms to form AuCa4Au8 cuboctahedra that share faces with two equivalent Au(7)Ca4Au8 cuboctahedra and faces with four equivalent Au(6)Ca4GeAu7 cuboctahedra. In the eighth Au site, Au(8) is bonded in a distorted linear geometry to four equivalent Ca(1), two equivalent Au(2), four equivalent Au(5), and two equivalent Ge(3) atoms. In the ninth Au site, Au(9) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(4), two equivalent Ca(2), one Au(7), two equivalent Au(6), and one Ge(1) atom. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 5-coordinate geometry to one Ca(1), two equivalent Ca(2), one Au(3), one Au(5), one Au(9), and two equivalent Au(2) atoms. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to one Ca(2), two equivalent Ca(1), one Au(4), one Au(6), two equivalent Au(1), and one Ge(3) atom. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Ca(3), two equivalent Ca(1), one Au(8), two equivalent Au(3), two equivalent Au(5), and one Ge(2) atom. is represented by the CIF card [CIF]
data_Ca3Ge3Au8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.540
_cell_length_b   9.610
_cell_length_c   13.539
_cell_angle_alpha   89.043
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   590.647
_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
  Ca  Ca0  1  0.500  0.999  0.189  1.0
  Ca  Ca1  1  0.500  0.001  0.811  1.0
  Ca  Ca2  1  0.000  0.495  0.312  1.0
  Ca  Ca3  1  0.000  0.505  0.688  1.0
  Ca  Ca4  1  0.000  0.500  0.000  1.0
  Ca  Ca5  1  0.500  0.000  0.500  1.0
  Ge  Ge6  1  0.500  0.349  0.180  1.0
  Ge  Ge7  1  0.500  0.651  0.820  1.0
  Ge  Ge8  1  0.000  0.850  0.315  1.0
  Ge  Ge9  1  0.000  0.150  0.685  1.0
  Ge  Ge10  1  0.000  0.779  0.126  1.0
  Ge  Ge11  1  0.000  0.221  0.874  1.0
  Au  Au12  1  0.500  0.736  0.362  1.0
  Au  Au13  1  0.500  0.264  0.638  1.0
  Au  Au14  1  0.000  0.239  0.137  1.0
  Au  Au15  1  0.000  0.761  0.863  1.0
  Au  Au16  1  0.500  0.387  0.840  1.0
  Au  Au17  1  0.500  0.613  0.160  1.0
  Au  Au18  1  0.000  0.890  0.659  1.0
  Au  Au19  1  0.000  0.110  0.341  1.0
  Au  Au20  1  0.500  0.206  0.004  1.0
  Au  Au21  1  0.500  0.794  0.996  1.0
  Au  Au22  1  0.000  0.704  0.496  1.0
  Au  Au23  1  0.000  0.296  0.504  1.0
  Au  Au24  1  0.500  0.500  0.500  1.0
  Au  Au25  1  0.000  0.000  0.000  1.0
  Au  Au26  1  0.500  0.280  0.368  1.0
  Au  Au27  1  0.500  0.720  0.632  1.0
[/CIF]
.