GdPr3 is beta Cu3Ti-like structured and crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to two equivalent Pr(2), two equivalent Pr(4), four equivalent Pr(1), and four equivalent Pr(3) atoms to form GdPr12 cuboctahedra that share corners with four equivalent Pr(4)Pr8Gd4 cuboctahedra, corners with six equivalent Gd(1)Pr12 cuboctahedra, corners with eight equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with two equivalent Pr(4)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(2)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with eight equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with six equivalent Gd(2)Pr12 cuboctahedra. In the second Gd site, Gd(2) is bonded to two equivalent Pr(2), two equivalent Pr(4), four equivalent Pr(1), and four equivalent Pr(3) atoms to form GdPr12 cuboctahedra that share corners with four equivalent Pr(2)Pr8Gd4 cuboctahedra, corners with six equivalent Gd(2)Pr12 cuboctahedra, corners with eight equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with two equivalent Pr(2)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(4)Pr8Gd4 cuboctahedra, edges with eight equivalent Pr(3)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with six equivalent Gd(1)Pr12 cuboctahedra. There are four inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to two equivalent Gd(1), two equivalent Gd(2), two equivalent Pr(1), two equivalent Pr(2), two equivalent Pr(3), and two equivalent Pr(4) atoms to form PrPr8Gd4 cuboctahedra that share corners with four equivalent Gd(2)Pr12 cuboctahedra, corners with four equivalent Pr(2)Pr8Gd4 cuboctahedra, corners with ten equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with two equivalent Gd(2)Pr12 cuboctahedra, edges with two equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with two equivalent Pr(2)Pr8Gd4 cuboctahedra, edges with four equivalent Gd(1)Pr12 cuboctahedra, edges with four equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, and faces with eight equivalent Pr(3)Pr8Gd4 cuboctahedra. In the second Pr site, Pr(2) is bonded to two equivalent Gd(1), two equivalent Gd(2), four equivalent Pr(1), and four equivalent Pr(3) atoms to form PrPr8Gd4 cuboctahedra that share corners with four equivalent Gd(2)Pr12 cuboctahedra, corners with six equivalent Pr(2)Pr8Gd4 cuboctahedra, corners with eight equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with two equivalent Gd(2)Pr12 cuboctahedra, edges with four equivalent Gd(1)Pr12 cuboctahedra, edges with four equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with eight equivalent Pr(3)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with six equivalent Pr(4)Pr8Gd4 cuboctahedra. In the third Pr site, Pr(3) is bonded to two equivalent Gd(1), two equivalent Gd(2), two equivalent Pr(1), two equivalent Pr(2), two equivalent Pr(3), and two equivalent Pr(4) atoms to form PrPr8Gd4 cuboctahedra that share corners with four equivalent Gd(1)Pr12 cuboctahedra, corners with four equivalent Pr(4)Pr8Gd4 cuboctahedra, corners with ten equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with two equivalent Gd(1)Pr12 cuboctahedra, edges with two equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with two equivalent Pr(4)Pr8Gd4 cuboctahedra, edges with four equivalent Gd(2)Pr12 cuboctahedra, edges with four equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with eight equivalent Pr(1)Pr8Gd4 cuboctahedra. In the fourth Pr site, Pr(4) is bonded to two equivalent Gd(1), two equivalent Gd(2), four equivalent Pr(1), and four equivalent Pr(3) atoms to form PrPr8Gd4 cuboctahedra that share corners with four equivalent Gd(1)Pr12 cuboctahedra, corners with six equivalent Pr(4)Pr8Gd4 cuboctahedra, corners with eight equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with two equivalent Gd(1)Pr12 cuboctahedra, edges with four equivalent Gd(2)Pr12 cuboctahedra, edges with four equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with eight equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with six equivalent Pr(2)Pr8Gd4 cuboctahedra.
GdPr3 is beta Cu3Ti-like structured and crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to two equivalent Pr(2), two equivalent Pr(4), four equivalent Pr(1), and four equivalent Pr(3) atoms to form GdPr12 cuboctahedra that share corners with four equivalent Pr(4)Pr8Gd4 cuboctahedra, corners with six equivalent Gd(1)Pr12 cuboctahedra, corners with eight equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with two equivalent Pr(4)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(2)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with eight equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with six equivalent Gd(2)Pr12 cuboctahedra. Both Gd(1)-Pr(2) bond lengths are 3.69 Å. Both Gd(1)-Pr(4) bond lengths are 3.75 Å. All Gd(1)-Pr(1) bond lengths are 3.70 Å. All Gd(1)-Pr(3) bond lengths are 3.75 Å. In the second Gd site, Gd(2) is bonded to two equivalent Pr(2), two equivalent Pr(4), four equivalent Pr(1), and four equivalent Pr(3) atoms to form GdPr12 cuboctahedra that share corners with four equivalent Pr(2)Pr8Gd4 cuboctahedra, corners with six equivalent Gd(2)Pr12 cuboctahedra, corners with eight equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with two equivalent Pr(2)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(4)Pr8Gd4 cuboctahedra, edges with eight equivalent Pr(3)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with six equivalent Gd(1)Pr12 cuboctahedra. Both Gd(2)-Pr(2) bond lengths are 3.75 Å. Both Gd(2)-Pr(4) bond lengths are 3.70 Å. There are two shorter (3.74 Å) and two longer (3.76 Å) Gd(2)-Pr(1) bond lengths. All Gd(2)-Pr(3) bond lengths are 3.70 Å. There are four inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to two equivalent Gd(1), two equivalent Gd(2), two equivalent Pr(1), two equivalent Pr(2), two equivalent Pr(3), and two equivalent Pr(4) atoms to form PrPr8Gd4 cuboctahedra that share corners with four equivalent Gd(2)Pr12 cuboctahedra, corners with four equivalent Pr(2)Pr8Gd4 cuboctahedra, corners with ten equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with two equivalent Gd(2)Pr12 cuboctahedra, edges with two equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with two equivalent Pr(2)Pr8Gd4 cuboctahedra, edges with four equivalent Gd(1)Pr12 cuboctahedra, edges with four equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, and faces with eight equivalent Pr(3)Pr8Gd4 cuboctahedra. There is one shorter (3.69 Å) and one longer (3.81 Å) Pr(1)-Pr(1) bond length. There is one shorter (3.68 Å) and one longer (3.81 Å) Pr(1)-Pr(2) bond length. Both Pr(1)-Pr(3) bond lengths are 3.74 Å. Both Pr(1)-Pr(4) bond lengths are 3.73 Å. In the second Pr site, Pr(2) is bonded to two equivalent Gd(1), two equivalent Gd(2), four equivalent Pr(1), and four equivalent Pr(3) atoms to form PrPr8Gd4 cuboctahedra that share corners with four equivalent Gd(2)Pr12 cuboctahedra, corners with six equivalent Pr(2)Pr8Gd4 cuboctahedra, corners with eight equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with two equivalent Gd(2)Pr12 cuboctahedra, edges with four equivalent Gd(1)Pr12 cuboctahedra, edges with four equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with eight equivalent Pr(3)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with six equivalent Pr(4)Pr8Gd4 cuboctahedra. All Pr(2)-Pr(3) bond lengths are 3.74 Å. In the third Pr site, Pr(3) is bonded to two equivalent Gd(1), two equivalent Gd(2), two equivalent Pr(1), two equivalent Pr(2), two equivalent Pr(3), and two equivalent Pr(4) atoms to form PrPr8Gd4 cuboctahedra that share corners with four equivalent Gd(1)Pr12 cuboctahedra, corners with four equivalent Pr(4)Pr8Gd4 cuboctahedra, corners with ten equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with two equivalent Gd(1)Pr12 cuboctahedra, edges with two equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with two equivalent Pr(4)Pr8Gd4 cuboctahedra, edges with four equivalent Gd(2)Pr12 cuboctahedra, edges with four equivalent Pr(1)Pr8Gd4 cuboctahedra, edges with four equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(2)Pr8Gd4 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with eight equivalent Pr(1)Pr8Gd4 cuboctahedra. There is one shorter (3.70 Å) and one longer (3.80 Å) Pr(3)-Pr(3) bond length. There is one shorter (3.70 Å) and one longer (3.80 Å) Pr(3)-Pr(4) bond length. In the fourth Pr site, Pr(4) is bonded to two equivalent Gd(1), two equivalent Gd(2), four equivalent Pr(1), and four equivalent Pr(3) atoms to form PrPr8Gd4 cuboctahedra that share corners with four equivalent Gd(1)Pr12 cuboctahedra, corners with six equivalent Pr(4)Pr8Gd4 cuboctahedra, corners with eight equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with two equivalent Gd(1)Pr12 cuboctahedra, edges with four equivalent Gd(2)Pr12 cuboctahedra, edges with four equivalent Pr(3)Pr8Gd4 cuboctahedra, edges with eight equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with two equivalent Gd(1)Pr12 cuboctahedra, faces with two equivalent Gd(2)Pr12 cuboctahedra, faces with two equivalent Pr(4)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(1)Pr8Gd4 cuboctahedra, faces with four equivalent Pr(3)Pr8Gd4 cuboctahedra, and faces with six equivalent Pr(2)Pr8Gd4 cuboctahedra.