Materials Data on K2S3 by Materials Project
K2S3 crystallizes in the orthorhombic Cmc2_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 seven S+0.67- atoms. There are a spread of K–S bond distances ranging from 3.24–3.37 Å. In the second K1+ site, K1+ is bonded in a 8-coordinate geometry to eight S+0.67- atoms. There are a spread of K–S bond distances ranging from 3.14–3.61 Å. There are two inequivalent S+0.67- sites. In the first S+0.67- site, S+0.67- is bonded in a 7-coordinate geometry to six K1+ and one S+0.67- atom. The S–S bond length is 2.10 Å. In the second S+0.67- site, S+0.67- is bonded in a 5-coordinate geometry to three K1+ and two equivalent S+0.67- atoms.
36 MATERIALS SCIENCE↗