Mg5Tm is Magnesium-derived structured and crystallizes in the orthorhombic Amm2 space group. There are five inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(5), and four equivalent Mg(4) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Mg(3)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with three equivalent Mg(3)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with four equivalent Mg(4)Tm2Mg10 cuboctahedra, edges with eight equivalent Tm(1)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with two equivalent Tm(1)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(1)Mg12 cuboctahedra, faces with four equivalent Mg(4)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(5)Tm2Mg10 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and four equivalent Tm(1) atoms to form MgTm4Mg8 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Mg(3)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with three equivalent Mg(1)Mg12 cuboctahedra, edges with three equivalent Mg(3)Tm2Mg10 cuboctahedra, edges with four equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with eight equivalent Mg(5)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(5)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with four equivalent Tm(1)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(4)Tm2Mg10 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(5), and two equivalent Tm(1) atoms to form MgTm2Mg10 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Mg(3)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with three equivalent Mg(1)Mg12 cuboctahedra, edges with three equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with four equivalent Mg(5)Tm2Mg10 cuboctahedra, edges with eight equivalent Mg(4)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(4)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with four equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(5)Tm2Mg10 cuboctahedra, and faces with six equivalent Tm(1)Tm2Mg10 cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), four equivalent Mg(1), and two equivalent Tm(1) atoms to form MgTm2Mg10 cuboctahedra that share corners with six equivalent Mg(4)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(5)Tm2Mg10 cuboctahedra, corners with six equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(5)Tm2Mg10 cuboctahedra, edges with three equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with four equivalent Mg(1)Mg12 cuboctahedra, edges with eight equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(5)Tm2Mg10 cuboctahedra, faces with two equivalent Tm(1)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(1)Mg12 cuboctahedra, faces with four equivalent Mg(4)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(2)Tm4Mg8 cuboctahedra. In the fifth Mg site, Mg(5) is bonded to two equivalent Mg(1), two equivalent Mg(4), two equivalent Mg(5), four equivalent Mg(3), and two equivalent Tm(1) atoms to form MgTm2Mg10 cuboctahedra that share corners with six equivalent Mg(4)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(5)Tm2Mg10 cuboctahedra, corners with six equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(4)Tm2Mg10 cuboctahedra, edges with three equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with four equivalent Mg(3)Tm2Mg10 cuboctahedra, edges with eight equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with two equivalent Mg(4)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with two equivalent Tm(1)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(5)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(1)Mg12 cuboctahedra. Tm(1) is bonded to two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(5), four equivalent Mg(2), and two equivalent Tm(1) atoms to form TmTm2Mg10 cuboctahedra that share corners with six equivalent Mg(4)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(5)Tm2Mg10 cuboctahedra, corners with six equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(4)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(5)Tm2Mg10 cuboctahedra, edges with four equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with eight equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(4)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(5)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with four equivalent Tm(1)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(3)Tm2Mg10 cuboctahedra.
Mg5Tm is Magnesium-derived structured and crystallizes in the orthorhombic Amm2 space group. There are five inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(5), and four equivalent Mg(4) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Mg(3)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with three equivalent Mg(3)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with four equivalent Mg(4)Tm2Mg10 cuboctahedra, edges with eight equivalent Tm(1)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with two equivalent Tm(1)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(1)Mg12 cuboctahedra, faces with four equivalent Mg(4)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(5)Tm2Mg10 cuboctahedra. Both Mg(1)-Mg(1) bond lengths are 3.24 Å. Both Mg(1)-Mg(2) bond lengths are 3.19 Å. Both Mg(1)-Mg(3) bond lengths are 3.27 Å. Both Mg(1)-Mg(5) bond lengths are 3.22 Å. All Mg(1)-Mg(4) bond lengths are 3.21 Å. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and four equivalent Tm(1) atoms to form MgTm4Mg8 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Mg(3)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with three equivalent Mg(1)Mg12 cuboctahedra, edges with three equivalent Mg(3)Tm2Mg10 cuboctahedra, edges with four equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with eight equivalent Mg(5)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(5)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with four equivalent Tm(1)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(4)Tm2Mg10 cuboctahedra. Both Mg(2)-Mg(2) bond lengths are 3.24 Å. Both Mg(2)-Mg(3) bond lengths are 3.31 Å. Both Mg(2)-Mg(4) bond lengths are 3.23 Å. All Mg(2)-Tm(1) bond lengths are 3.23 Å. In the third Mg site, Mg(3) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), four equivalent Mg(5), and two equivalent Tm(1) atoms to form MgTm2Mg10 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra, corners with six equivalent Mg(3)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with three equivalent Mg(1)Mg12 cuboctahedra, edges with three equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with four equivalent Mg(5)Tm2Mg10 cuboctahedra, edges with eight equivalent Mg(4)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(4)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with four equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(5)Tm2Mg10 cuboctahedra, and faces with six equivalent Tm(1)Tm2Mg10 cuboctahedra. Both Mg(3)-Mg(3) bond lengths are 3.24 Å. All Mg(3)-Mg(5) bond lengths are 3.24 Å. Both Mg(3)-Tm(1) bond lengths are 3.26 Å. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), four equivalent Mg(1), and two equivalent Tm(1) atoms to form MgTm2Mg10 cuboctahedra that share corners with six equivalent Mg(4)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(5)Tm2Mg10 cuboctahedra, corners with six equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(5)Tm2Mg10 cuboctahedra, edges with three equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with four equivalent Mg(1)Mg12 cuboctahedra, edges with eight equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(5)Tm2Mg10 cuboctahedra, faces with two equivalent Tm(1)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(1)Mg12 cuboctahedra, faces with four equivalent Mg(4)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(2)Tm4Mg8 cuboctahedra. Both Mg(4)-Mg(4) bond lengths are 3.24 Å. Both Mg(4)-Mg(5) bond lengths are 3.17 Å. Both Mg(4)-Tm(1) bond lengths are 3.26 Å. In the fifth Mg site, Mg(5) is bonded to two equivalent Mg(1), two equivalent Mg(4), two equivalent Mg(5), four equivalent Mg(3), and two equivalent Tm(1) atoms to form MgTm2Mg10 cuboctahedra that share corners with six equivalent Mg(4)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(5)Tm2Mg10 cuboctahedra, corners with six equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(4)Tm2Mg10 cuboctahedra, edges with three equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with four equivalent Mg(3)Tm2Mg10 cuboctahedra, edges with eight equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with two equivalent Mg(4)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with two equivalent Tm(1)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(3)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(5)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(1)Mg12 cuboctahedra. Both Mg(5)-Mg(5) bond lengths are 3.24 Å. Both Mg(5)-Tm(1) bond lengths are 3.33 Å. Tm(1) is bonded to two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(5), four equivalent Mg(2), and two equivalent Tm(1) atoms to form TmTm2Mg10 cuboctahedra that share corners with six equivalent Mg(4)Tm2Mg10 cuboctahedra, corners with six equivalent Mg(5)Tm2Mg10 cuboctahedra, corners with six equivalent Tm(1)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(4)Tm2Mg10 cuboctahedra, edges with three equivalent Mg(5)Tm2Mg10 cuboctahedra, edges with four equivalent Mg(2)Tm4Mg8 cuboctahedra, edges with eight equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(4)Tm2Mg10 cuboctahedra, faces with two equivalent Mg(5)Tm2Mg10 cuboctahedra, faces with four equivalent Mg(2)Tm4Mg8 cuboctahedra, faces with four equivalent Tm(1)Tm2Mg10 cuboctahedra, and faces with six equivalent Mg(3)Tm2Mg10 cuboctahedra. Both Tm(1)-Tm(1) bond lengths are 3.24 Å.