Materials Data on Ho2Si3Pd by Materials Project
Ho2PdSi3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded to four equivalent Pd and eight equivalent Si atoms to form a mixture of distorted edge and face-sharing HoSi8Pd4 cuboctahedra. There are two shorter (3.01 Å) and two longer (3.18 Å) Ho–Pd bond lengths. There are four shorter (3.03 Å) and four longer (3.13 Å) Ho–Si bond lengths. In the second Ho site, Ho is bonded to twelve equivalent Si atoms to form a mixture of edge and face-sharing HoSi12 cuboctahedra. There are six shorter (3.04 Å) and six longer (3.08 Å) Ho–Si bond lengths. Pd is bonded in a 3-coordinate geometry to six equivalent Ho and three equivalent Si atoms. All Pd–Si bond lengths are 2.41 Å. Si is bonded in a 1-coordinate geometry to six Ho, one Pd, and two equivalent Si atoms. Both Si–Si bond lengths are 2.35 Å.