YbRuB4 crystallizes in the orthorhombic Pbam space group. Yb(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 Yb(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 Yb(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 Yb(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 Yb(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 Yb(1), four equivalent Ru(1), one B(1), one B(3), and one B(4) atom.
YbRuB4 crystallizes in the orthorhombic Pbam space group. Yb(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 Yb(1)-Ru(1) bond distances ranging from 3.01-3.07 Å. Both Yb(1)-B(4) bond lengths are 2.61 Å. There are two shorter (2.68 Å) and two longer (2.74 Å) Yb(1)-B(1) bond lengths. There are two shorter (2.72 Å) and two longer (2.74 Å) Yb(1)-B(2) bond lengths. All Yb(1)-B(3) bond lengths are 2.72 Å. Ru(1) is bonded in a 15-coordinate geometry to four equivalent Yb(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 2.56 Å. Both Ru(1)-B(1) bond lengths are 2.32 Å. Both Ru(1)-B(2) bond lengths are 2.27 Å. Both Ru(1)-B(3) bond lengths are 2.31 Å. There are two shorter (2.33 Å) and two longer (2.34 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 Yb(1), two equivalent Ru(1), one B(4), and two equivalent B(2) atoms. The B(1)-B(4) bond length is 1.74 Å. There is one shorter (1.80 Å) and one longer (1.84 Å) B(1)-B(2) bond length. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Yb(1), two equivalent Ru(1), one B(3), and two equivalent B(1) atoms. The B(2)-B(3) bond length is 1.82 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Yb(1), two equivalent Ru(1), one B(2), one B(3), and one B(4) atom. The B(3)-B(3) bond length is 1.76 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 Yb(1), four equivalent Ru(1), one B(1), one B(3), and one B(4) atom. The B(4)-B(4) bond length is 1.72 Å.