Ca4Au5Cd3 crystallizes in the monoclinic Pm space group. There are four inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 5-coordinate geometry to one Au(1), one Au(5), two equivalent Au(3), and two equivalent Au(4) atoms. In the second Ca site, Ca(2) is bonded in a 5-coordinate geometry to one Au(2), one Au(5), two equivalent Au(3), and two equivalent Au(4) atoms. In the third Ca site, Ca(3) is bonded in a 10-coordinate geometry to one Au(3), two equivalent Au(1), two equivalent Au(2), two equivalent Au(5), one Cd(2), and two equivalent Cd(1) atoms. In the fourth Ca site, Ca(4) is bonded in a 7-coordinate geometry to one Au(4), two equivalent Au(1), two equivalent Au(2), and two equivalent Au(5) atoms. There are five inequivalent Au sites. In the first Au site, Au(1) is bonded in a 9-coordinate geometry to one Ca(1), two equivalent Ca(3), two equivalent Ca(4), one Au(5), one Cd(1), and two equivalent Cd(3) atoms. In the second Au site, Au(2) is bonded in a 8-coordinate geometry to one Ca(2), two equivalent Ca(3), two equivalent Ca(4), one Au(5), one Cd(1), and two equivalent Cd(2) atoms. In the third Au site, Au(3) is bonded in a 9-coordinate geometry to one Ca(3), two equivalent Ca(1), two equivalent Ca(2), one Cd(2), one Cd(3), and two equivalent Cd(1) atoms. In the fourth Au site, Au(4) is bonded in a 7-coordinate geometry to one Ca(4), two equivalent Ca(1), two equivalent Ca(2), two equivalent Au(5), one Cd(2), and one Cd(3) atom. In the fifth Au site, Au(5) is bonded to one Ca(1), one Ca(2), two equivalent Ca(3), two equivalent Ca(4), one Au(1), one Au(2), two equivalent Au(4), and two equivalent Cd(2) atoms to form distorted face-sharing AuCa6Cd2Au4 cuboctahedra. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 4-coordinate geometry to two equivalent Ca(3), one Au(1), one Au(2), and two equivalent Au(3) atoms. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to one Ca(3), one Au(3), one Au(4), two equivalent Au(2), and two equivalent Au(5) atoms. In the third Cd site, Cd(3) is bonded in a 4-coordinate geometry to one Au(3), one Au(4), and two equivalent Au(1) atoms.
Ca4Au5Cd3 crystallizes in the monoclinic Pm space group. There are four inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 5-coordinate geometry to one Au(1), one Au(5), two equivalent Au(3), and two equivalent Au(4) atoms. The Ca(1)-Au(1) bond length is 3.13 Å. The Ca(1)-Au(5) bond length is 3.47 Å. Both Ca(1)-Au(3) bond lengths are 3.08 Å. Both Ca(1)-Au(4) bond lengths are 3.06 Å. In the second Ca site, Ca(2) is bonded in a 5-coordinate geometry to one Au(2), one Au(5), two equivalent Au(3), and two equivalent Au(4) atoms. The Ca(2)-Au(2) bond length is 3.11 Å. The Ca(2)-Au(5) bond length is 3.61 Å. Both Ca(2)-Au(3) bond lengths are 3.14 Å. Both Ca(2)-Au(4) bond lengths are 3.06 Å. In the third Ca site, Ca(3) is bonded in a 10-coordinate geometry to one Au(3), two equivalent Au(1), two equivalent Au(2), two equivalent Au(5), one Cd(2), and two equivalent Cd(1) atoms. The Ca(3)-Au(3) bond length is 3.28 Å. Both Ca(3)-Au(1) bond lengths are 3.07 Å. Both Ca(3)-Au(2) bond lengths are 3.10 Å. Both Ca(3)-Au(5) bond lengths are 3.29 Å. The Ca(3)-Cd(2) bond length is 3.33 Å. Both Ca(3)-Cd(1) bond lengths are 3.38 Å. In the fourth Ca site, Ca(4) is bonded in a 7-coordinate geometry to one Au(4), two equivalent Au(1), two equivalent Au(2), and two equivalent Au(5) atoms. The Ca(4)-Au(4) bond length is 3.10 Å. Both Ca(4)-Au(1) bond lengths are 3.11 Å. Both Ca(4)-Au(2) bond lengths are 3.12 Å. Both Ca(4)-Au(5) bond lengths are 3.20 Å. There are five inequivalent Au sites. In the first Au site, Au(1) is bonded in a 9-coordinate geometry to one Ca(1), two equivalent Ca(3), two equivalent Ca(4), one Au(5), one Cd(1), and two equivalent Cd(3) atoms. The Au(1)-Au(5) bond length is 2.84 Å. The Au(1)-Cd(1) bond length is 2.97 Å. Both Au(1)-Cd(3) bond lengths are 2.82 Å. In the second Au site, Au(2) is bonded in a 8-coordinate geometry to one Ca(2), two equivalent Ca(3), two equivalent Ca(4), one Au(5), one Cd(1), and two equivalent Cd(2) atoms. The Au(2)-Au(5) bond length is 3.03 Å. The Au(2)-Cd(1) bond length is 2.83 Å. Both Au(2)-Cd(2) bond lengths are 2.84 Å. In the third Au site, Au(3) is bonded in a 9-coordinate geometry to one Ca(3), two equivalent Ca(1), two equivalent Ca(2), one Cd(2), one Cd(3), and two equivalent Cd(1) atoms. The Au(3)-Cd(2) bond length is 2.86 Å. The Au(3)-Cd(3) bond length is 2.94 Å. Both Au(3)-Cd(1) bond lengths are 2.85 Å. In the fourth Au site, Au(4) is bonded in a 7-coordinate geometry to one Ca(4), two equivalent Ca(1), two equivalent Ca(2), two equivalent Au(5), one Cd(2), and one Cd(3) atom. Both Au(4)-Au(5) bond lengths are 2.87 Å. The Au(4)-Cd(2) bond length is 2.91 Å. The Au(4)-Cd(3) bond length is 2.81 Å. In the fifth Au site, Au(5) is bonded to one Ca(1), one Ca(2), two equivalent Ca(3), two equivalent Ca(4), one Au(1), one Au(2), two equivalent Au(4), and two equivalent Cd(2) atoms to form distorted face-sharing AuCa6Cd2Au4 cuboctahedra. Both Au(5)-Cd(2) bond lengths are 3.19 Å. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 4-coordinate geometry to two equivalent Ca(3), one Au(1), one Au(2), and two equivalent Au(3) atoms. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to one Ca(3), one Au(3), one Au(4), two equivalent Au(2), and two equivalent Au(5) atoms. In the third Cd site, Cd(3) is bonded in a 4-coordinate geometry to one Au(3), one Au(4), and two equivalent Au(1) atoms.