Co2Ta is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. Ta(1) is bonded in a 16-coordinate geometry to four equivalent Ta(1), three equivalent Co(2), and nine equivalent Co(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(2) is bonded to six equivalent Ta(1) and six equivalent Co(1) atoms to form a mixture of face, corner, and edge-sharing CoTa6Co6 cuboctahedra. In the second Co site, Co(1) is bonded to six equivalent Ta(1), two equivalent Co(2), and four equivalent Co(1) atoms to form a mixture of face, corner, and edge-sharing CoTa6Co6 cuboctahedra.
Co2Ta is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. Ta(1) is bonded in a 16-coordinate geometry to four equivalent Ta(1), three equivalent Co(2), and nine equivalent Co(1) atoms. There are three shorter (2.91 Å) and one longer (2.98 Å) Ta(1)-Ta(1) bond length. All Ta(1)-Co(2) bond lengths are 2.80 Å. There are three shorter (2.75 Å) and six longer (2.82 Å) Ta(1)-Co(1) bond lengths. There are two inequivalent Co sites. In the first Co site, Co(2) is bonded to six equivalent Ta(1) and six equivalent Co(1) atoms to form a mixture of face, corner, and edge-sharing CoTa6Co6 cuboctahedra. All Co(2)-Co(1) bond lengths are 2.40 Å. In the second Co site, Co(1) is bonded to six equivalent Ta(1), two equivalent Co(2), and four equivalent Co(1) atoms to form a mixture of face, corner, and edge-sharing CoTa6Co6 cuboctahedra. There are two shorter (2.34 Å) and two longer (2.44 Å) Co(1)-Co(1) bond lengths.