YbReB4 crystallizes in the orthorhombic Pbam space group. Yb(1) is bonded in a 14-coordinate geometry to four equivalent Re(1), two equivalent B(1), four equivalent B(2), four equivalent B(3), and four equivalent B(4) atoms. Re(1) is bonded in a 15-coordinate geometry to four equivalent Yb(1), one Re(1), 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 Yb(1), four equivalent Re(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 Yb(1), two equivalent Re(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 Yb(1), two equivalent Re(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 Yb(1), two equivalent Re(1), one B(2), and two equivalent B(3) atoms.
YbReB4 crystallizes in the orthorhombic Pbam space group. Yb(1) is bonded in a 14-coordinate geometry to four equivalent Re(1), two equivalent B(1), four equivalent B(2), four equivalent B(3), and four equivalent B(4) atoms. There are a spread of Yb(1)-Re(1) bond distances ranging from 3.07-3.10 Å. Both Yb(1)-B(1) bond lengths are 2.62 Å. There are two shorter (2.72 Å) and two longer (2.74 Å) Yb(1)-B(2) bond lengths. There are two shorter (2.69 Å) and two longer (2.77 Å) Yb(1)-B(3) bond lengths. There are two shorter (2.74 Å) and two longer (2.76 Å) Yb(1)-B(4) bond lengths. Re(1) is bonded in a 15-coordinate geometry to four equivalent Yb(1), one Re(1), two equivalent B(2), two equivalent B(3), two equivalent B(4), and four equivalent B(1) atoms. The Re(1)-Re(1) bond length is 2.47 Å. Both Re(1)-B(2) bond lengths are 2.34 Å. Both Re(1)-B(3) bond lengths are 2.36 Å. Both Re(1)-B(4) bond lengths are 2.31 Å. All Re(1)-B(1) bond lengths are 2.33 Å. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to two equivalent Yb(1), four equivalent Re(1), one B(1), one B(2), and one B(3) atom. The B(1)-B(1) bond length is 1.78 Å. The B(1)-B(2) bond length is 1.76 Å. The B(1)-B(3) bond length is 1.76 Å. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Yb(1), two equivalent Re(1), one B(1), one B(2), and one B(4) atom. The B(2)-B(2) bond length is 1.77 Å. The B(2)-B(4) bond length is 1.84 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Yb(1), two equivalent Re(1), one B(1), and two equivalent B(4) atoms. There is one shorter (1.81 Å) and one longer (1.85 Å) B(3)-B(4) bond length. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Yb(1), two equivalent Re(1), one B(2), and two equivalent B(3) atoms.