Materials Data on Sr3SmRhO6 by Materials Project
Sr3SmRhO6 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 2.56–2.78 Å. Sm3+ is bonded to six equivalent O2- atoms to form distorted SmO6 pentagonal pyramids that share faces with two equivalent RhO6 octahedra. All Sm–O bond lengths are 2.35 Å. Rh3+ is bonded to six equivalent O2- atoms to form RhO6 octahedra that share faces with two equivalent SmO6 pentagonal pyramids. All Rh–O bond lengths are 2.12 Å. O2- is bonded to four equivalent Sr2+, one Sm3+, and one Rh3+ atom to form a mixture of distorted corner, edge, and face-sharing OSr4SmRh octahedra. The corner-sharing octahedra tilt angles range from 0–65°.