Materials Data on Rb3Ta2S11 by Materials Project
Rb3Ta2S11 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 11-coordinate geometry to eleven S+1.18- atoms. There are a spread of Rb–S bond distances ranging from 3.42–4.05 Å. In the second Rb1+ site, Rb1+ is bonded in a 10-coordinate geometry to ten S+1.18- atoms. There are a spread of Rb–S bond distances ranging from 3.38–4.11 Å. In the third Rb1+ site, Rb1+ is bonded in a 9-coordinate geometry to nine S+1.18- atoms. There are a spread of Rb–S bond distances ranging from 3.40–3.80 Å. There are two inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Ta–S bond distances ranging from 2.24–2.99 Å. In the second Ta5+ site, Ta5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Ta–S bond distances ranging from 2.24–2.93 Å. There are eleven inequivalent S+1.18- sites. In the first S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to four Rb1+, one Ta5+, and one S+1.18- atom. The S–S bond length is 2.10 Å. In the second S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two equivalent Rb1+, two Ta5+, and one S+1.18- atom. In the third S+1.18- site, S+1.18- is bonded in a 2-coordinate geometry to one Rb1+ and two Ta5+ atoms. In the fourth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three Rb1+ and one Ta5+ atom. In the fifth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three Rb1+ and one Ta5+ atom. In the sixth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two equivalent Rb1+ and two Ta5+ atoms. In the seventh S+1.18- site, S+1.18- is bonded in a distorted single-bond geometry to four Rb1+ and one Ta5+ atom. In the eighth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three Rb1+ and one Ta5+ atom. In the ninth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three Rb1+, one Ta5+, and one S+1.18- atom. The S–S bond length is 2.09 Å. In the tenth S+1.18- site, S+1.18- is bonded in a distorted single-bond geometry to three Rb1+ and one Ta5+ atom. In the eleventh S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two Rb1+, one Ta5+, and one S+1.18- atom.