Ru3Al2B2 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 10-coordinate geometry to four equivalent Al(1) and six equivalent B(1) atoms. In the second Ru site, Ru(2) is bonded in a body-centered cubic geometry to eight equivalent Al(1) atoms. Al(1) is bonded in a 9-coordinate geometry to four equivalent Ru(1), four equivalent Ru(2), and one B(1) atom. B(1) is bonded in a 9-coordinate geometry to six equivalent Ru(1), one Al(1), and two equivalent B(1) atoms.
Ru3Al2B2 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a 10-coordinate geometry to four equivalent Al(1) and six equivalent B(1) atoms. All Ru(1)-Al(1) bond lengths are 2.72 Å. There are four shorter (2.28 Å) and two longer (2.35 Å) Ru(1)-B(1) bond lengths. In the second Ru site, Ru(2) is bonded in a body-centered cubic geometry to eight equivalent Al(1) atoms. All Ru(2)-Al(1) bond lengths are 2.54 Å. Al(1) is bonded in a 9-coordinate geometry to four equivalent Ru(1), four equivalent Ru(2), and one B(1) atom. The Al(1)-B(1) bond length is 2.55 Å. B(1) is bonded in a 9-coordinate geometry to six equivalent Ru(1), one Al(1), and two equivalent B(1) atoms. Both B(1)-B(1) bond lengths are 1.81 Å.