YCd3 crystallizes in the orthorhombic Cmcm space group. Y(1) is bonded to four equivalent Cd(2) and eight equivalent Cd(1) atoms to form YCd12 cuboctahedra that share corners with four equivalent Cd(2)Y4Cd8 cuboctahedra, corners with six equivalent Y(1)Cd12 cuboctahedra, edges with six equivalent Cd(2)Y4Cd8 cuboctahedra, faces with four equivalent Cd(2)Y4Cd8 cuboctahedra, and faces with eight equivalent Y(1)Cd12 cuboctahedra. There are two inequivalent Cd sites. In the first Cd site, Cd(2) is bonded to four equivalent Y(1) and eight equivalent Cd(1) atoms to form distorted CdY4Cd8 cuboctahedra that share corners with four equivalent Y(1)Cd12 cuboctahedra, corners with six equivalent Cd(2)Y4Cd8 cuboctahedra, edges with six equivalent Y(1)Cd12 cuboctahedra, faces with four equivalent Y(1)Cd12 cuboctahedra, and faces with eight equivalent Cd(2)Y4Cd8 cuboctahedra. In the second Cd site, Cd(1) is bonded in a 11-coordinate geometry to four equivalent Y(1), three equivalent Cd(1), and four equivalent Cd(2) atoms.
YCd3 crystallizes in the orthorhombic Cmcm space group. Y(1) is bonded to four equivalent Cd(2) and eight equivalent Cd(1) atoms to form YCd12 cuboctahedra that share corners with four equivalent Cd(2)Y4Cd8 cuboctahedra, corners with six equivalent Y(1)Cd12 cuboctahedra, edges with six equivalent Cd(2)Y4Cd8 cuboctahedra, faces with four equivalent Cd(2)Y4Cd8 cuboctahedra, and faces with eight equivalent Y(1)Cd12 cuboctahedra. There are two shorter (3.16 Å) and two longer (3.35 Å) Y(1)-Cd(2) bond lengths. There are a spread of Y(1)-Cd(1) bond distances ranging from 3.16-3.31 Å. There are two inequivalent Cd sites. In the first Cd site, Cd(2) is bonded to four equivalent Y(1) and eight equivalent Cd(1) atoms to form distorted CdY4Cd8 cuboctahedra that share corners with four equivalent Y(1)Cd12 cuboctahedra, corners with six equivalent Cd(2)Y4Cd8 cuboctahedra, edges with six equivalent Y(1)Cd12 cuboctahedra, faces with four equivalent Y(1)Cd12 cuboctahedra, and faces with eight equivalent Cd(2)Y4Cd8 cuboctahedra. There are a spread of Cd(2)-Cd(1) bond distances ranging from 3.05-3.35 Å. In the second Cd site, Cd(1) is bonded in a 11-coordinate geometry to four equivalent Y(1), three equivalent Cd(1), and four equivalent Cd(2) atoms. There are two shorter (3.10 Å) and one longer (3.11 Å) Cd(1)-Cd(1) bond length.