Materials Data on Rb3Ag9(SbS3)4 by Materials Project
Rb3Ag9(SbS3)4 crystallizes in the tetragonal I-4 space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a body-centered cubic geometry to eight S2- atoms. There are four shorter (3.49 Å) and four longer (3.61 Å) Rb–S bond lengths. In the second Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Rb–S bond distances ranging from 3.45–3.67 Å. There are three inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a 4-coordinate geometry to four equivalent S2- atoms. All Ag–S bond lengths are 2.83 Å. In the second Ag1+ site, Ag1+ is bonded in a 3-coordinate geometry to four S2- atoms. There are a spread of Ag–S bond distances ranging from 2.52–3.17 Å. In the third Ag1+ site, Ag1+ is bonded in a distorted trigonal planar geometry to four S2- atoms. There are a spread of Ag–S bond distances ranging from 2.54–3.34 Å. Sb3+ is bonded in a distorted trigonal non-coplanar geometry to three S2- atoms. There are a spread of Sb–S bond distances ranging from 2.45–2.49 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 7-coordinate geometry to two Rb1+, four Ag1+, and one Sb3+ atom. In the second S2- site, S2- is bonded in a 6-coordinate geometry to two Rb1+, three Ag1+, and one Sb3+ atom. In the third S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent Rb1+, two Ag1+, and one Sb3+ atom.