Cr2B is Khatyrkite-like structured and crystallizes in the orthorhombic Fddd space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 4-coordinate geometry to four equivalent B(1) atoms. In the second Cr site, Cr(2) is bonded in a 4-coordinate geometry to four equivalent B(1) atoms. B(1) is bonded in a 10-coordinate geometry to four equivalent Cr(1), four equivalent Cr(2), and two equivalent B(1) atoms.
Cr2B is Khatyrkite-like structured and crystallizes in the orthorhombic Fddd space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 4-coordinate geometry to four equivalent B(1) atoms. There are two shorter (2.18 Å) and two longer (2.19 Å) Cr(1)-B(1) bond lengths. In the second Cr site, Cr(2) is bonded in a 4-coordinate geometry to four equivalent B(1) atoms. There are two shorter (2.18 Å) and two longer (2.19 Å) Cr(2)-B(1) bond lengths. B(1) is bonded in a 10-coordinate geometry to four equivalent Cr(1), four equivalent Cr(2), and two equivalent B(1) atoms. Both B(1)-B(1) bond lengths are 2.10 Å.