Materials Data on Dy2OsC2 by Materials Project

Abstract

Dy2OsC2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Dy3+ sites. In the first Dy3+ site, Dy3+ is bonded to five C4- atoms to form a mixture of corner and edge-sharing DyC5 square pyramids. There are a spread of Dy–C bond distances ranging from 2.47–2.59 Å. In the second Dy3+ site, Dy3+ is bonded in a rectangular see-saw-like geometry to four C4- atoms. There are a spread of Dy–C bond distances ranging from 2.55–2.58 Å. Os2+ is bonded in a trigonal planar geometry to three C4- atoms. There is two shorter (1.94 Å) and one longer (1.99 Å) Os–C bond length. There are two inequivalent C4- sites. In the first C4- site, C4- is bonded to four Dy3+ and two equivalent Os2+ atoms to form a mixture of corner and edge-sharing CDy4Os2 octahedra. The corner-sharing octahedra tilt angles range from 10–40°. In the second C4- site, C4- is bonded to five Dy3+ and one Os2+ atom to form a mixture of corner and edge-sharing CDy5Os octahedra. The corner-sharing octahedra tilt angles range from 3–40°.