YbGd3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Yb(1) is bonded to twelve Gd(1,1) atoms to form YbGd12 cuboctahedra that share corners with six equivalent Yb(1)Gd12 cuboctahedra; corners with twelve equivalent Gd(1)Yb4Gd8 cuboctahedra; edges with eighteen Gd(1,1)Yb4Gd8 cuboctahedra; faces with eight equivalent Yb(1)Gd12 cuboctahedra; and faces with twelve Gd(1,1)Yb4Gd8 cuboctahedra. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to four equivalent Yb(1) and eight Gd(1,1) atoms to form GdYb4Gd8 cuboctahedra that share corners with four equivalent Yb(1)Gd12 cuboctahedra; corners with fourteen Gd(1,1)Yb4Gd8 cuboctahedra; edges with six equivalent Yb(1)Gd12 cuboctahedra; edges with twelve Gd(1,1)Yb4Gd8 cuboctahedra; faces with four equivalent Yb(1)Gd12 cuboctahedra; and faces with sixteen Gd(1,1)Yb4Gd8 cuboctahedra. In the second Gd site, Gd(1) is bonded to four equivalent Yb(1) and eight equivalent Gd(1) atoms to form GdYb4Gd8 cuboctahedra that share corners with four equivalent Yb(1)Gd12 cuboctahedra; corners with fourteen Gd(1,1)Yb4Gd8 cuboctahedra; edges with six equivalent Yb(1)Gd12 cuboctahedra; edges with twelve equivalent Gd(1)Yb4Gd8 cuboctahedra; faces with four equivalent Yb(1)Gd12 cuboctahedra; and faces with sixteen Gd(1,1)Yb4Gd8 cuboctahedra.
YbGd3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Yb(1) is bonded to twelve Gd(1,1) atoms to form YbGd12 cuboctahedra that share corners with six equivalent Yb(1)Gd12 cuboctahedra; corners with twelve equivalent Gd(1)Yb4Gd8 cuboctahedra; edges with eighteen Gd(1,1)Yb4Gd8 cuboctahedra; faces with eight equivalent Yb(1)Gd12 cuboctahedra; and faces with twelve Gd(1,1)Yb4Gd8 cuboctahedra. There are six shorter (3.35 Å) and six longer (3.44 Å) Yb(1)-Gd(1,1) bond lengths. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to four equivalent Yb(1) and eight Gd(1,1) atoms to form GdYb4Gd8 cuboctahedra that share corners with four equivalent Yb(1)Gd12 cuboctahedra; corners with fourteen Gd(1,1)Yb4Gd8 cuboctahedra; edges with six equivalent Yb(1)Gd12 cuboctahedra; edges with twelve Gd(1,1)Yb4Gd8 cuboctahedra; faces with four equivalent Yb(1)Gd12 cuboctahedra; and faces with sixteen Gd(1,1)Yb4Gd8 cuboctahedra. There are a spread of Gd(1)-Gd(1,1) bond distances ranging from 3.32-3.49 Å. In the second Gd site, Gd(1) is bonded to four equivalent Yb(1) and eight equivalent Gd(1) atoms to form GdYb4Gd8 cuboctahedra that share corners with four equivalent Yb(1)Gd12 cuboctahedra; corners with fourteen Gd(1,1)Yb4Gd8 cuboctahedra; edges with six equivalent Yb(1)Gd12 cuboctahedra; edges with twelve equivalent Gd(1)Yb4Gd8 cuboctahedra; faces with four equivalent Yb(1)Gd12 cuboctahedra; and faces with sixteen Gd(1,1)Yb4Gd8 cuboctahedra.