TaBC crystallizes in the hexagonal P6_3/mmc space group. Ta(1) is bonded to six equivalent B(1) and six equivalent C(1) atoms to form a mixture of distorted face and edge-sharing TaB6C6 cuboctahedra. B(1) is bonded in a trigonal planar geometry to six equivalent Ta(1) and three equivalent C(1) atoms. C(1) is bonded in a trigonal planar geometry to six equivalent Ta(1) and three equivalent B(1) atoms.
TaBC crystallizes in the hexagonal P6_3/mmc space group. Ta(1) is bonded to six equivalent B(1) and six equivalent C(1) atoms to form a mixture of distorted face and edge-sharing TaB6C6 cuboctahedra. All Ta(1)-B(1) bond lengths are 2.54 Å. All Ta(1)-C(1) bond lengths are 2.54 Å. B(1) is bonded in a trigonal planar geometry to six equivalent Ta(1) and three equivalent C(1) atoms. All B(1)-C(1) bond lengths are 1.65 Å. C(1) is bonded in a trigonal planar geometry to six equivalent Ta(1) and three equivalent B(1) atoms.