LuCoB4 crystallizes in the orthorhombic Pbam space group. Lu(1) is bonded in a 14-coordinate geometry to two equivalent B(1), four equivalent B(2), four equivalent B(3), and four equivalent B(4) atoms. Co(1) is bonded in a 10-coordinate geometry to two equivalent B(2), two equivalent B(3), two equivalent B(4), and four equivalent B(1) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to two equivalent Lu(1), four equivalent Co(1), one B(1), one B(2), and one B(3) atom. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Co(1), one B(1), one B(2), and one B(4) atom. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Co(1), one B(1), and two equivalent B(4) atoms. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Co(1), one B(2), and two equivalent B(3) atoms.
LuCoB4 crystallizes in the orthorhombic Pbam space group. Lu(1) is bonded in a 14-coordinate geometry to two equivalent B(1), four equivalent B(2), four equivalent B(3), and four equivalent B(4) atoms. Both Lu(1)-B(1) bond lengths are 2.52 Å. There are two shorter (2.62 Å) and two longer (2.63 Å) Lu(1)-B(2) bond lengths. There are two shorter (2.58 Å) and two longer (2.66 Å) Lu(1)-B(3) bond lengths. There are two shorter (2.62 Å) and two longer (2.65 Å) Lu(1)-B(4) bond lengths. Co(1) is bonded in a 10-coordinate geometry to two equivalent B(2), two equivalent B(3), two equivalent B(4), and four equivalent B(1) atoms. Both Co(1)-B(2) bond lengths are 2.21 Å. Both Co(1)-B(3) bond lengths are 2.21 Å. Both Co(1)-B(4) bond lengths are 2.15 Å. There are two shorter (2.25 Å) and two longer (2.26 Å) Co(1)-B(1) bond lengths. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to two equivalent Lu(1), four equivalent Co(1), one B(1), one B(2), and one B(3) atom. The B(1)-B(1) bond length is 1.67 Å. The B(1)-B(2) bond length is 1.71 Å. The B(1)-B(3) bond length is 1.72 Å. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Co(1), one B(1), one B(2), and one B(4) atom. The B(2)-B(2) bond length is 1.76 Å. The B(2)-B(4) bond length is 1.78 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Co(1), one B(1), and two equivalent B(4) atoms. There is one shorter (1.78 Å) and one longer (1.79 Å) B(3)-B(4) bond length. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Lu(1), two equivalent Co(1), one B(2), and two equivalent B(3) atoms.