TbRuB4 crystallizes in the orthorhombic Pbam space group. Tb(1) is bonded in a 18-coordinate geometry to four equivalent Ru(1), two equivalent B(4), four equivalent B(1), four equivalent B(2), and four equivalent B(3) atoms. Ru(1) is bonded in a 15-coordinate geometry to four equivalent Tb(1), one Ru(1), two equivalent B(1), two equivalent B(2), two equivalent B(3), and four equivalent B(4) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two equivalent Ru(1), one B(4), and two equivalent B(2) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two equivalent Ru(1), one B(3), and two equivalent B(1) atoms. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two 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 two equivalent Tb(1), four equivalent Ru(1), one B(1), one B(3), and one B(4) atom.
TbRuB4 crystallizes in the orthorhombic Pbam space group. Tb(1) is bonded in a 18-coordinate geometry to four equivalent Ru(1), two equivalent B(4), four equivalent B(1), four equivalent B(2), and four equivalent B(3) atoms. There are a spread of Tb(1)-Ru(1) bond distances ranging from 2.97-3.12 Å. Both Tb(1)-B(4) bond lengths are 2.65 Å. There are two shorter (2.71 Å) and two longer (2.77 Å) Tb(1)-B(1) bond lengths. There are two shorter (2.73 Å) and two longer (2.77 Å) Tb(1)-B(2) bond lengths. There are two shorter (2.74 Å) and two longer (2.75 Å) Tb(1)-B(3) bond lengths. Ru(1) is bonded in a 15-coordinate geometry to four equivalent Tb(1), one Ru(1), two equivalent B(1), two equivalent B(2), two equivalent B(3), and four equivalent B(4) atoms. The Ru(1)-Ru(1) bond length is 2.70 Å. Both Ru(1)-B(1) bond lengths are 2.33 Å. Both Ru(1)-B(2) bond lengths are 2.26 Å. Both Ru(1)-B(3) bond lengths are 2.33 Å. There are two shorter (2.39 Å) and two longer (2.40 Å) Ru(1)-B(4) 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 Tb(1), two equivalent Ru(1), one B(4), and two equivalent B(2) atoms. The B(1)-B(4) bond length is 1.75 Å. There is one shorter (1.81 Å) and one longer (1.86 Å) B(1)-B(2) bond length. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two equivalent Ru(1), one B(3), and two equivalent B(1) atoms. The B(2)-B(3) bond length is 1.84 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Tb(1), two equivalent Ru(1), one B(2), one B(3), and one B(4) atom. The B(3)-B(3) bond length is 1.78 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 two equivalent Tb(1), four equivalent Ru(1), one B(1), one B(3), and one B(4) atom. The B(4)-B(4) bond length is 1.71 Å.