TbOsB2 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. Tb(1) is bonded in a 9-coordinate geometry to one Os(1) and eight equivalent B(1) atoms. Os(1) is bonded in a 7-coordinate geometry to one Tb(1) and six equivalent B(1) atoms. B(1) is bonded in a 9-coordinate geometry to four equivalent Tb(1), three equivalent Os(1), and two equivalent B(1) atoms.
TbOsB2 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. Tb(1) is bonded in a 9-coordinate geometry to one Os(1) and eight equivalent B(1) atoms. The Tb(1)-Os(1) bond length is 2.95 Å. There are a spread of Tb(1)-B(1) bond distances ranging from 2.62-2.93 Å. Os(1) is bonded in a 7-coordinate geometry to one Tb(1) and six equivalent B(1) atoms. There are a spread of Os(1)-B(1) bond distances ranging from 2.24-2.28 Å. B(1) is bonded in a 9-coordinate geometry to four equivalent Tb(1), three equivalent Os(1), and two equivalent B(1) atoms. There is one shorter (1.78 Å) and one longer (1.90 Å) B(1)-B(1) bond length.