Gd3La is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to eight Gd(1,1) and four equivalent La(1) atoms to form GdLa4Gd8 cuboctahedra that share corners with four equivalent La(1)Gd12 cuboctahedra; corners with fourteen Gd(1,1)La4Gd8 cuboctahedra; edges with six equivalent La(1)Gd12 cuboctahedra; edges with twelve Gd(1,1)La4Gd8 cuboctahedra; faces with four equivalent La(1)Gd12 cuboctahedra; and faces with sixteen Gd(1,1)La4Gd8 cuboctahedra. In the second Gd site, Gd(1) is bonded to eight Gd(1,1) and four equivalent La(1) atoms to form GdLa4Gd8 cuboctahedra that share corners with four equivalent La(1)Gd12 cuboctahedra; corners with fourteen Gd(1,1)La4Gd8 cuboctahedra; edges with six equivalent La(1)Gd12 cuboctahedra; edges with twelve Gd(1,1)La4Gd8 cuboctahedra; faces with four equivalent La(1)Gd12 cuboctahedra; and faces with sixteen Gd(1,1)La4Gd8 cuboctahedra. La(1) is bonded to twelve Gd(1,1) atoms to form LaGd12 cuboctahedra that share corners with six equivalent La(1)Gd12 cuboctahedra; corners with twelve equivalent Gd(1)La4Gd8 cuboctahedra; edges with eighteen Gd(1,1)La4Gd8 cuboctahedra; faces with eight equivalent La(1)Gd12 cuboctahedra; and faces with twelve Gd(1,1)La4Gd8 cuboctahedra.
Gd3La is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to eight Gd(1,1) and four equivalent La(1) atoms to form GdLa4Gd8 cuboctahedra that share corners with four equivalent La(1)Gd12 cuboctahedra; corners with fourteen Gd(1,1)La4Gd8 cuboctahedra; edges with six equivalent La(1)Gd12 cuboctahedra; edges with twelve Gd(1,1)La4Gd8 cuboctahedra; faces with four equivalent La(1)Gd12 cuboctahedra; and faces with sixteen Gd(1,1)La4Gd8 cuboctahedra. There are a spread of Gd(1)-Gd(1,1) bond distances ranging from 3.62-3.80 Å. There are two shorter (3.70 Å) and two longer (3.71 Å) Gd(1)-La(1) bond lengths. In the second Gd site, Gd(1) is bonded to eight Gd(1,1) and four equivalent La(1) atoms to form GdLa4Gd8 cuboctahedra that share corners with four equivalent La(1)Gd12 cuboctahedra; corners with fourteen Gd(1,1)La4Gd8 cuboctahedra; edges with six equivalent La(1)Gd12 cuboctahedra; edges with twelve Gd(1,1)La4Gd8 cuboctahedra; faces with four equivalent La(1)Gd12 cuboctahedra; and faces with sixteen Gd(1,1)La4Gd8 cuboctahedra. There is one shorter (3.62 Å) and one longer (3.80 Å) Gd(1)-Gd(1) bond length. There are two shorter (3.70 Å) and two longer (3.71 Å) Gd(1)-La(1) bond lengths. La(1) is bonded to twelve Gd(1,1) atoms to form LaGd12 cuboctahedra that share corners with six equivalent La(1)Gd12 cuboctahedra; corners with twelve equivalent Gd(1)La4Gd8 cuboctahedra; edges with eighteen Gd(1,1)La4Gd8 cuboctahedra; faces with eight equivalent La(1)Gd12 cuboctahedra; and faces with twelve Gd(1,1)La4Gd8 cuboctahedra.