Materials Data on Sr2Mn2O5 by Materials Project

Abstract

Sr2Mn2O5 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.60–2.97 Å. Mn3+ is bonded to five O2- atoms to form corner-sharing MnO5 trigonal bipyramids. There are a spread of Mn–O bond distances ranging from 1.92–2.07 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Mn3+ atoms to form distorted edge-sharing OSr4Mn2 octahedra. In the second O2- site, O2- is bonded in a 6-coordinate geometry to four equivalent Sr2+ and two equivalent Mn3+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to four equivalent Sr2+ and two equivalent Mn3+ atoms.