Materials Data on K2S5 by Materials Project
K2S5 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 7-coordinate geometry to eight S+0.40- atoms. There are a spread of K–S bond distances ranging from 3.32–3.67 Å. In the second K1+ site, K1+ is bonded in a 8-coordinate geometry to eight S+0.40- atoms. There are a spread of K–S bond distances ranging from 3.29–3.62 Å. There are five inequivalent S+0.40- sites. In the first S+0.40- site, S+0.40- is bonded in a 5-coordinate geometry to five K1+ and one S+0.40- atom. The S–S bond length is 2.06 Å. In the second S+0.40- site, S+0.40- is bonded in a 5-coordinate geometry to three K1+ and two S+0.40- atoms. The S–S bond length is 2.08 Å. In the third S+0.40- site, S+0.40- is bonded in a 5-coordinate geometry to four K1+ and one S+0.40- atom. The S–S bond length is 2.06 Å. In the fourth S+0.40- site, S+0.40- is bonded in a 5-coordinate geometry to three K1+ and two S+0.40- atoms. The S–S bond length is 2.09 Å. In the fifth S+0.40- site, S+0.40- is bonded in a 3-coordinate geometry to one K1+ and two S+0.40- atoms.