LuRuB4 crystallizes in the orthorhombic Pbam space group. Lu(1) is bonded in a 18-coordinate geometry to four equivalent Ru(1), two equivalent B(3), four equivalent B(1), four equivalent B(2), and four equivalent B(4) atoms. Ru(1) is bonded in a 15-coordinate geometry to four equivalent Lu(1), one Ru(1), two equivalent B(1), two equivalent B(2), two equivalent B(4), and four equivalent B(3) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Ru(1), one B(2), and two equivalent B(4) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Ru(1), one B(1), one B(2), and one B(3) atom. In the third B site, B(3) is bonded in a 9-coordinate geometry to two equivalent Lu(1), four equivalent Ru(1), one B(2), one B(3), and one B(4) atom. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Ru(1), one B(3), and two equivalent B(1) atoms.
LuRuB4 crystallizes in the orthorhombic Pbam space group. Lu(1) is bonded in a 18-coordinate geometry to four equivalent Ru(1), two equivalent B(3), four equivalent B(1), four equivalent B(2), and four equivalent B(4) atoms. There are a spread of Lu(1)-Ru(1) bond distances ranging from 2.94-3.09 Å. Both Lu(1)-B(3) bond lengths are 2.60 Å. There are two shorter (2.70 Å) and two longer (2.74 Å) Lu(1)-B(1) bond lengths. There are two shorter (2.70 Å) and two longer (2.72 Å) Lu(1)-B(2) bond lengths. There are two shorter (2.67 Å) and two longer (2.75 Å) Lu(1)-B(4) bond lengths. Ru(1) is bonded in a 15-coordinate geometry to four equivalent Lu(1), one Ru(1), two equivalent B(1), two equivalent B(2), two equivalent B(4), and four equivalent B(3) atoms. The Ru(1)-Ru(1) bond length is 2.71 Å. Both Ru(1)-B(1) bond lengths are 2.24 Å. Both Ru(1)-B(2) bond lengths are 2.32 Å. Both Ru(1)-B(4) bond lengths are 2.31 Å. There are two shorter (2.38 Å) and two longer (2.39 Å) Ru(1)-B(3) bond lengths. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Ru(1), one B(2), and two equivalent B(4) atoms. The B(1)-B(2) bond length is 1.84 Å. There is one shorter (1.76 Å) and one longer (1.86 Å) B(1)-B(4) bond length. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Ru(1), one B(1), one B(2), and one B(3) atom. The B(2)-B(2) bond length is 1.73 Å. The B(2)-B(3) bond length is 1.73 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to two equivalent Lu(1), four equivalent Ru(1), one B(2), one B(3), and one B(4) atom. The B(3)-B(3) bond length is 1.72 Å. The B(3)-B(4) bond length is 1.74 Å. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Ru(1), one B(3), and two equivalent B(1) atoms.