Materials Data on Rb6Fe2O5 by Materials Project
Rb6Fe2O5 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are four inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded to four O2- atoms to form distorted edge-sharing RbO4 trigonal pyramids. There are a spread of Rb–O bond distances ranging from 2.78–2.96 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 2.87–3.11 Å. In the third Rb1+ site, Rb1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (3.00 Å) and two longer (3.31 Å) Rb–O bond lengths. In the fourth 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 2.89–3.29 Å. There are two inequivalent Fe2+ sites. In the first Fe2+ site, Fe2+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.90 Å) and one longer (1.95 Å) Fe–O bond length. In the second Fe2+ site, Fe2+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.91 Å) and one longer (1.95 Å) Fe–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to six Rb1+ and one Fe2+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to six Rb1+ and one Fe2+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three Rb1+ and two Fe2+ atoms.