Materials Data on K2BeO2 by Materials Project

Abstract

K2BeO2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.69–2.91 Å. In the second K1+ site, K1+ is bonded in a 3-coordinate geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.68–3.14 Å. Be2+ is bonded in a distorted trigonal planar geometry to three O2- atoms. There are a spread of Be–O bond distances ranging from 1.50–1.61 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to six K1+ and one Be2+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to four K1+ and two equivalent Be2+ atoms.