Materials Data on Rb3ErO3 by Materials Project
Rb3ErO3 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 to four O2- atoms to form distorted RbO4 tetrahedra that share corners with five equivalent ErO4 tetrahedra and an edgeedge with one RbO4 tetrahedra. There are a spread of Rb–O bond distances ranging from 2.85–3.10 Å. In the second Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Rb–O bond distances ranging from 2.85–3.48 Å. In the third Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Rb–O bond distances ranging from 2.71–3.21 Å. Er3+ is bonded to four O2- atoms to form ErO4 tetrahedra that share corners with five equivalent RbO4 tetrahedra and an edgeedge with one ErO4 tetrahedra. There are a spread of Er–O bond distances ranging from 2.10–2.20 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to six Rb1+ and one Er3+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to four Rb1+ and two equivalent Er3+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to four Rb1+ and one Er3+ atom.