Materials Data on Ag4Bi2O5 by Materials Project
Ag4Bi2O5 crystallizes in the orthorhombic Pnna space group. The structure is three-dimensional. there are three inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a 2-coordinate geometry to three O2- atoms. There are a spread of Ag–O bond distances ranging from 2.12–2.84 Å. In the second Ag1+ site, Ag1+ is bonded in a linear geometry to two equivalent O2- atoms. Both Ag–O bond lengths are 2.12 Å. In the third Ag1+ site, Ag1+ is bonded in a linear geometry to two equivalent O2- atoms. Both Ag–O bond lengths are 2.22 Å. Bi3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.15–2.98 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ag1+ and two equivalent Bi3+ atoms. In the second O2- site, O2- is bonded to two equivalent Ag1+ and two equivalent Bi3+ atoms to form distorted corner-sharing OAg2Bi2 tetrahedra. In the third O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Ag1+ and two equivalent Bi3+ atoms.