Ho2C3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. Ho(1) is bonded in a 6-coordinate geometry to six equivalent C(1) atoms. C(1) is bonded to four equivalent Ho(1) and one C(1) atom to form a mixture of distorted edge and corner-sharing CHo4C trigonal bipyramids.
Ho2C3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. Ho(1) is bonded in a 6-coordinate geometry to six equivalent C(1) atoms. There are three shorter (2.48 Å) and three longer (2.60 Å) Ho(1)-C(1) bond lengths. C(1) is bonded to four equivalent Ho(1) and one C(1) atom to form a mixture of distorted edge and corner-sharing CHo4C trigonal bipyramids. The C(1)-C(1) bond length is 1.34 Å.