Materials Data on Sr3ErRhO6 by Materials Project

Sr3ErRhO6 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are a spread of Sr–O bond distances ranging from 2.53–2.76 Å. Er3+ is bonded to six equivalent O2- atoms to form distorted ErO6 pentagonal pyramids that share faces with two equivalent RhO6 octahedra. All Er–O bond lengths are 2.27 Å. Rh3+ is bonded to six equivalent O2- atoms to form RhO6 octahedra that share faces with two equivalent ErO6 pentagonal pyramids. All Rh–O bond lengths are 2.11 Å. O2- is bonded to four equivalent Sr2+, one Er3+, and one Rh3+ atom to form a mixture of distorted face, edge, and corner-sharing OSr4ErRh octahedra. The corner-sharing octahedra tilt angles range from 0–66°.