YbB2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. Yb(1) is bonded to twelve equivalent B(1) atoms to form a mixture of edge and face-sharing YbB12 cuboctahedra. B(1) is bonded in a 9-coordinate geometry to six equivalent Yb(1) and three equivalent B(1) atoms.
YbB2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. Yb(1) is bonded to twelve equivalent B(1) atoms to form a mixture of edge and face-sharing YbB12 cuboctahedra. All Yb(1)-B(1) bond lengths are 2.73 Å. B(1) is bonded in a 9-coordinate geometry to six equivalent Yb(1) and three equivalent B(1) atoms. All B(1)-B(1) bond lengths are 1.85 Å.