Materials Data on Rb3HoO3 by Materials Project

Abstract

Rb3HoO3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Rb–O bond distances ranging from 2.71–3.22 Å. In the second Rb1+ site, Rb1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Rb–O bond distances ranging from 2.84–2.98 Å. In the third Rb1+ site, Rb1+ is bonded to four O2- atoms to form distorted RbO4 trigonal pyramids that share corners with two equivalent HoO4 tetrahedra, corners with two equivalent RbO4 trigonal pyramids, an edgeedge with one HoO4 tetrahedra, and an edgeedge with one RbO4 trigonal pyramid. There are a spread of Rb–O bond distances ranging from 2.84–2.97 Å. Ho3+ is bonded to four O2- atoms to form HoO4 tetrahedra that share corners with two equivalent RbO4 trigonal pyramids, an edgeedge with one HoO4 tetrahedra, and an edgeedge with one RbO4 trigonal pyramid. There are a spread of Ho–O bond distances ranging from 2.11–2.21 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to four Rb1+ and one Ho3+ atom. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three Rb1+ and two equivalent Ho3+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to four Rb1+ and one Ho3+ atom.