CaAuSi is hexagonal omega structure-derived structured and crystallizes in the hexagonal P-6m2 space group. Ca(1) is bonded to six equivalent Au(1) and six equivalent Si(1) atoms to form a mixture of face and edge-sharing CaSi6Au6 cuboctahedra. Au(1) is bonded in a 9-coordinate geometry to six equivalent Ca(1) and three equivalent Si(1) atoms. Si(1) is bonded in a distorted trigonal planar geometry to six equivalent Ca(1) and three equivalent Au(1) atoms.
CaAuSi is hexagonal omega structure-derived structured and crystallizes in the hexagonal P-6m2 space group. Ca(1) is bonded to six equivalent Au(1) and six equivalent Si(1) atoms to form a mixture of face and edge-sharing CaSi6Au6 cuboctahedra. All Ca(1)-Au(1) bond lengths are 3.18 Å. All Ca(1)-Si(1) bond lengths are 3.18 Å. Au(1) is bonded in a 9-coordinate geometry to six equivalent Ca(1) and three equivalent Si(1) atoms. All Au(1)-Si(1) bond lengths are 2.50 Å. Si(1) is bonded in a distorted trigonal planar geometry to six equivalent Ca(1) and three equivalent Au(1) atoms.