Materials Data on Er(ReO4)3 by Materials Project
Er(ReO4)3 crystallizes in the trigonal R3c space group. The structure is three-dimensional. Er3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Er–O bond distances ranging from 2.25–2.65 Å. Re7+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Re–O bond distances ranging from 1.72–1.78 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Re7+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Er3+ and one Re7+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Er3+ and one Re7+ atom. In the fourth O2- site, O2- is bonded in a distorted water-like geometry to one Er3+ and one Re7+ atom.