Materials Data on K2Mn(SO6)2 by Materials Project

Abstract

K4Mn(SO5)4MnO4 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional and consists of two MnO4 clusters and one K4Mn(SO5)4 framework. In each MnO4 cluster, Mn is bonded in a square co-planar geometry to four equivalent O atoms. All Mn–O bond lengths are 1.72 Å. O is bonded in a single-bond geometry to one Mn atom. In the K4Mn(SO5)4 framework, there are two inequivalent K sites. In the first K site, K is bonded in a 4-coordinate geometry to four O atoms. There are two shorter (2.69 Å) and two longer (2.73 Å) K–O bond lengths. In the second K site, K is bonded in a 6-coordinate geometry to six O atoms. There are a spread of K–O bond distances ranging from 2.76–3.29 Å. Mn is bonded in a square co-planar geometry to four equivalent O atoms. All Mn–O bond lengths are 1.73 Å. S is bonded in a tetrahedral geometry to four O atoms. There is three shorter (1.48 Å) and one longer (1.49 Å) S–O bond length. There are five inequivalent O sites. In the first O site, O is bonded in a distorted bent 120 degrees geometry to one K and one S atom. In the second O site, O is bonded in a single-bond geometry to one K and one Mn atom. In the third O site, O is bonded in a distorted linear geometry to one K and one S atom. In the fourth O site, O is bonded in a distorted single-bond geometry to one K and one S atom. In the fifth O site, O is bonded in a single-bond geometry to one K and one S atom.