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YCd2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Y is bonded to twelve equivalent Cd atoms to form a mixture of distorted face and edge-sharing YCd12 cuboctahedra. All Y–Cd bond lengths are 3.36 Å. Cd is bonded in a 11-coordinate geometry to six equivalent Y and five equivalent Cd atoms. There are three shorter (2.87 Å) and two longer (3.49 Å) Cd–Cd bond lengths.
YCd3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Y is bonded in a 12-coordinate geometry to twelve Cd atoms. There are a spread of Y–Cd bond distances ranging from 3.21–3.61 Å. There are two inequivalent Cd sites. In the first Cd site, Cd is bonded in a 12-coordinate geometry to four equivalent Y and eight equivalent Cd atoms. There are a spread of Cd–Cd bond distances ranging from 3.03–3.34 Å. In the second Cd site, Cd is bonded in a 11-coordinate geometry to four equivalent Y and seven Cd atoms. There are one shorter (3.09 Å) and two longer (3.21 Å) Cd–Cd bond lengths.
YCd3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Y is bonded in a distorted body-centered cubic geometry to fourteen Cd atoms. There are eight shorter (3.12 Å) and six longer (3.61 Å) Y–Cd bond lengths. There are two inequivalent Cd sites. In the first Cd site, Cd is bonded in a 8-coordinate geometry to six equivalent Y and eight equivalent Cd atoms. All Cd–Cd bond lengths are 3.12 Å. In the second Cd site, Cd is bonded in a distorted body-centered cubic geometry to four equivalent Y and four equivalent Cd atoms.
CdY is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Y is bonded in a body-centered cubic geometry to eight equivalent Cd atoms. All Y–Cd bond lengths are 3.25 Å. Cd is bonded in a body-centered cubic geometry to eight equivalent Y atoms.