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CeAu3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ce3+ is bonded to twelve equivalent Au1- atoms to form a mixture of corner and face-sharing CeAu12 cuboctahedra. There are six shorter (3.11 Å) and six longer (3.24 Å) Ce–Au bond lengths. Au1- is bonded in a 4-coordinate geometry to four equivalent Ce3+ atoms.
CeAu crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ce is bonded in a 7-coordinate geometry to seven equivalent Au atoms. There are a spread of Ce–Au bond distances ranging from 3.12–3.23 Å. Au is bonded in a 7-coordinate geometry to seven equivalent Ce atoms.
CeAu crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ce is bonded in a 7-coordinate geometry to seven equivalent Au atoms. There are a spread of Ce–Au bond distances ranging from 3.13–3.23 Å. Au is bonded in a 7-coordinate geometry to seven equivalent Ce atoms.
CeAu2 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to twelve equivalent Au atoms. There are a spread of Ce–Au bond distances ranging from 3.21–3.44 Å. Au is bonded in a 10-coordinate geometry to six equivalent Ce and four equivalent Au atoms. There are a spread of Au–Au bond distances ranging from 2.76–3.01 Å.
CeAu6 is beta Plutonium-derived structured and crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Ce3+ is bonded in a 8-coordinate geometry to sixteen Au+0.50- atoms. There are a spread of Ce–Au bond distances ranging from 3.18–3.91 Å. There are three inequivalent Au+0.50- sites. In the first Au+0.50- site, Au+0.50- is bonded in a 3-coordinate geometry to three equivalent Ce3+ and seven Au+0.50- atoms. There are a spread of Au–Au bond distances ranging from 2.81–3.30 Å. In the second Au+0.50- site, Au+0.50- is bonded in a 2-coordinate geometry to two equivalent Ce3+ and eight Au+0.50- atoms. There are a spread of Au–Au bond distances ranging from 2.77–2.94 Å. In the third Au+0.50- site, Au+0.50- is bonded in a 12-coordinate geometry to three equivalent Ce3+ and nine Au+0.50- atoms. There are one shorter (2.80 Å) and one longer (2.92 Å) Au–Au bond lengths.