Materials Data on Rb2Mn3Se4 by Materials Project
Rb2Mn3Se4 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. Rb1+ is bonded in a body-centered cubic geometry to eight equivalent Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.61–3.86 Å. There are two inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing MnSe4 tetrahedra. There are two shorter (2.56 Å) and two longer (2.62 Å) Mn–Se bond lengths. In the second Mn2+ site, Mn2+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing MnSe4 tetrahedra. All Mn–Se bond lengths are 2.58 Å. Se2- is bonded in a 3-coordinate geometry to four equivalent Rb1+ and three Mn2+ atoms.
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