Ho5Co2Bi crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to three equivalent Co(1) and two equivalent Bi(1) atoms to form a mixture of distorted face, corner, and edge-sharing HoCo3Bi2 square pyramids. In the second Ho site, Ho(2) is bonded in a 4-coordinate geometry to four equivalent Co(1) and two equivalent Bi(1) atoms. Co(1) is bonded in a 8-coordinate geometry to two equivalent Ho(2) and six equivalent Ho(1) atoms. Bi(1) is bonded in a 10-coordinate geometry to two equivalent Ho(2) and eight equivalent Ho(1) atoms.
Ho5Co2Bi crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to three equivalent Co(1) and two equivalent Bi(1) atoms to form a mixture of distorted face, corner, and edge-sharing HoCo3Bi2 square pyramids. There is one shorter (2.83 Å) and two longer (2.86 Å) Ho(1)-Co(1) bond lengths. Both Ho(1)-Bi(1) bond lengths are 3.32 Å. In the second Ho site, Ho(2) is bonded in a 4-coordinate geometry to four equivalent Co(1) and two equivalent Bi(1) atoms. All Ho(2)-Co(1) bond lengths are 2.93 Å. Both Ho(2)-Bi(1) bond lengths are 3.55 Å. Co(1) is bonded in a 8-coordinate geometry to two equivalent Ho(2) and six equivalent Ho(1) atoms. Bi(1) is bonded in a 10-coordinate geometry to two equivalent Ho(2) and eight equivalent Ho(1) atoms.