Materials Data on Ho2OsC2 by Materials Project

Ho2OsC2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to five C4- atoms to form a mixture of corner and edge-sharing HoC5 square pyramids. There are a spread of Ho–C bond distances ranging from 2.46–2.57 Å. In the second Ho3+ site, Ho3+ is bonded in a rectangular see-saw-like geometry to four C4- atoms. There are a spread of Ho–C bond distances ranging from 2.53–2.56 Å. Os2+ is bonded in a distorted trigonal planar geometry to three C4- atoms. There are a spread of Os–C bond distances ranging from 1.94–1.99 Å. There are two inequivalent C4- sites. In the first C4- site, C4- is bonded to four Ho3+ and two equivalent Os2+ atoms to form a mixture of corner and edge-sharing CHo4Os2 octahedra. The corner-sharing octahedra tilt angles range from 10–39°. In the second C4- site, C4- is bonded to five Ho3+ and one Os2+ atom to form a mixture of corner and edge-sharing CHo5Os octahedra. The corner-sharing octahedra tilt angles range from 3–39°.