CePt2Au3 crystallizes in the orthorhombic Imm2 space group. Ce(1) is bonded in a 16-coordinate geometry to six equivalent Pt(1), four equivalent Au(2), and six equivalent Au(1) atoms. Pt(1) is bonded to three equivalent Ce(1), two equivalent Pt(1), three equivalent Au(2), and four equivalent Au(1) atoms to form a mixture of face, corner, and edge-sharing PtCe3Pt2Au7 cuboctahedra. There are two inequivalent Au sites. In the first Au site, Au(2) is bonded in a 16-coordinate geometry to four equivalent Ce(1), six equivalent Pt(1), and six equivalent Au(1) atoms. In the second Au site, Au(1) is bonded in a 12-coordinate geometry to three equivalent Ce(1), four equivalent Pt(1), two equivalent Au(1), and three equivalent Au(2) atoms.
CePt2Au3 crystallizes in the orthorhombic Imm2 space group. Ce(1) is bonded in a 16-coordinate geometry to six equivalent Pt(1), four equivalent Au(2), and six equivalent Au(1) atoms. There are two shorter (3.14 Å) and four longer (3.22 Å) Ce(1)-Pt(1) bond lengths. There are two shorter (3.30 Å) and two longer (3.39 Å) Ce(1)-Au(2) bond lengths. There are four shorter (3.21 Å) and two longer (3.23 Å) Ce(1)-Au(1) bond lengths. Pt(1) is bonded to three equivalent Ce(1), two equivalent Pt(1), three equivalent Au(2), and four equivalent Au(1) atoms to form a mixture of face, corner, and edge-sharing PtCe3Pt2Au7 cuboctahedra. There is one shorter (2.75 Å) and one longer (2.76 Å) Pt(1)-Pt(1) bond length. There is one shorter (3.19 Å) and two longer (3.20 Å) Pt(1)-Au(2) bond lengths. There are two shorter (2.71 Å) and two longer (2.74 Å) Pt(1)-Au(1) bond lengths. There are two inequivalent Au sites. In the first Au site, Au(2) is bonded in a 16-coordinate geometry to four equivalent Ce(1), six equivalent Pt(1), and six equivalent Au(1) atoms. There are two shorter (3.18 Å) and four longer (3.22 Å) Au(2)-Au(1) bond lengths. In the second Au site, Au(1) is bonded in a 12-coordinate geometry to three equivalent Ce(1), four equivalent Pt(1), two equivalent Au(1), and three equivalent Au(2) atoms. There is one shorter (2.71 Å) and one longer (2.74 Å) Au(1)-Au(1) bond length.