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GdAu is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Gd is bonded in a body-centered cubic geometry to eight equivalent Au atoms. All Gd–Au bond lengths are 3.16 Å. Au is bonded in a body-centered cubic geometry to eight equivalent Gd atoms.
GdAu2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Gd is bonded in a distorted q6 geometry to ten equivalent Au atoms. There are two shorter (3.06 Å) and eight longer (3.08 Å) Gd–Au bond lengths. Au is bonded in a 10-coordinate geometry to five equivalent Gd atoms.
Gd3Au is Uranium Silicide structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. there are two inequivalent Gd sites. In the first Gd site, Gd is bonded in a distorted square co-planar geometry to four equivalent Au atoms. All Gd–Au bond lengths are 3.40 Å. In the second Gd site, Gd is bonded in a distorted square co-planar geometry to four equivalent Au atoms. All Gd–Au bond lengths are 3.39 Å. Au is bonded to twelve Gd atoms to form a mixture of corner and face-sharing AuGd12 cuboctahedra.