UMn5Al7 crystallizes in the orthorhombic Imm2 space group. U(1) is bonded in a 20-coordinate geometry to two equivalent Mn(2), eight equivalent Mn(1), one Al(1), one Al(2), two equivalent Al(3), two equivalent Al(4), and four equivalent Al(5) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 12-coordinate geometry to two equivalent U(1), one Mn(2), two equivalent Mn(1), one Al(1), one Al(2), one Al(4), two equivalent Al(3), and two equivalent Al(5) atoms. In the second Mn site, Mn(2) is bonded in a distorted q6 geometry to two equivalent U(1), four equivalent Mn(1), two equivalent Al(2), two equivalent Al(3), and two equivalent Al(5) atoms. There are five inequivalent Al sites. In the first Al site, Al(1) is bonded in a 10-coordinate geometry to one U(1), four equivalent Mn(1), one Al(2), two equivalent Al(4), and two equivalent Al(5) atoms. In the second Al site, Al(2) is bonded in a 14-coordinate geometry to one U(1), two equivalent Mn(2), four equivalent Mn(1), one Al(1), two equivalent Al(5), and four equivalent Al(3) atoms. In the third Al site, Al(3) is bonded in a 10-coordinate geometry to one U(1), one Mn(2), four equivalent Mn(1), one Al(3), one Al(4), two equivalent Al(2), and two equivalent Al(5) atoms. In the fourth Al site, Al(4) is bonded in a 12-coordinate geometry to two equivalent U(1), four equivalent Mn(1), two equivalent Al(1), two equivalent Al(3), and two equivalent Al(5) atoms. In the fifth Al site, Al(5) is bonded in a 12-coordinate geometry to two equivalent U(1), one Mn(2), four equivalent Mn(1), one Al(1), one Al(2), one Al(4), and two equivalent Al(3) atoms.
UMn5Al7 crystallizes in the orthorhombic Imm2 space group. U(1) is bonded in a 20-coordinate geometry to two equivalent Mn(2), eight equivalent Mn(1), one Al(1), one Al(2), two equivalent Al(3), two equivalent Al(4), and four equivalent Al(5) atoms. Both U(1)-Mn(2) bond lengths are 3.10 Å. There are four shorter (3.22 Å) and four longer (3.44 Å) U(1)-Mn(1) bond lengths. The U(1)-Al(1) bond length is 3.04 Å. The U(1)-Al(2) bond length is 2.93 Å. Both U(1)-Al(3) bond lengths are 3.03 Å. Both U(1)-Al(4) bond lengths are 3.21 Å. All U(1)-Al(5) bond lengths are 3.09 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 12-coordinate geometry to two equivalent U(1), one Mn(2), two equivalent Mn(1), one Al(1), one Al(2), one Al(4), two equivalent Al(3), and two equivalent Al(5) atoms. The Mn(1)-Mn(2) bond length is 2.56 Å. There is one shorter (2.34 Å) and one longer (2.62 Å) Mn(1)-Mn(1) bond length. The Mn(1)-Al(1) bond length is 2.67 Å. The Mn(1)-Al(2) bond length is 2.63 Å. The Mn(1)-Al(4) bond length is 2.51 Å. There is one shorter (2.61 Å) and one longer (2.67 Å) Mn(1)-Al(3) bond length. There is one shorter (2.50 Å) and one longer (2.56 Å) Mn(1)-Al(5) bond length. In the second Mn site, Mn(2) is bonded in a distorted q6 geometry to two equivalent U(1), four equivalent Mn(1), two equivalent Al(2), two equivalent Al(3), and two equivalent Al(5) atoms. Both Mn(2)-Al(2) bond lengths are 2.70 Å. Both Mn(2)-Al(3) bond lengths are 2.67 Å. Both Mn(2)-Al(5) bond lengths are 2.66 Å. There are five inequivalent Al sites. In the first Al site, Al(1) is bonded in a 10-coordinate geometry to one U(1), four equivalent Mn(1), one Al(2), two equivalent Al(4), and two equivalent Al(5) atoms. The Al(1)-Al(2) bond length is 2.73 Å. Both Al(1)-Al(4) bond lengths are 2.67 Å. Both Al(1)-Al(5) bond lengths are 2.88 Å. In the second Al site, Al(2) is bonded in a 14-coordinate geometry to one U(1), two equivalent Mn(2), four equivalent Mn(1), one Al(1), two equivalent Al(5), and four equivalent Al(3) atoms. Both Al(2)-Al(5) bond lengths are 2.88 Å. All Al(2)-Al(3) bond lengths are 3.08 Å. In the third Al site, Al(3) is bonded in a 10-coordinate geometry to one U(1), one Mn(2), four equivalent Mn(1), one Al(3), one Al(4), two equivalent Al(2), and two equivalent Al(5) atoms. The Al(3)-Al(3) bond length is 2.73 Å. The Al(3)-Al(4) bond length is 2.87 Å. Both Al(3)-Al(5) bond lengths are 2.74 Å. In the fourth Al site, Al(4) is bonded in a 12-coordinate geometry to two equivalent U(1), four equivalent Mn(1), two equivalent Al(1), two equivalent Al(3), and two equivalent Al(5) atoms. Both Al(4)-Al(5) bond lengths are 2.72 Å. In the fifth Al site, Al(5) is bonded in a 12-coordinate geometry to two equivalent U(1), one Mn(2), four equivalent Mn(1), one Al(1), one Al(2), one Al(4), and two equivalent Al(3) atoms.