Materials Data on Rb2Sn2O3 by Materials Project
Rb2Sn2O3 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a hexagonal planar geometry to six equivalent O2- atoms. All Rb–O bond lengths are 3.12 Å. In the second Rb1+ site, Rb1+ is bonded in a hexagonal planar geometry to six equivalent O2- atoms. All Rb–O bond lengths are 3.13 Å. Sn2+ is bonded in a distorted T-shaped geometry to three equivalent O2- atoms. All Sn–O bond lengths are 2.08 Å. O2- is bonded to four Rb1+ and two equivalent Sn2+ atoms to form a mixture of distorted corner and face-sharing ORb4Sn2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.
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