Materials Data on Tb2S3 by Materials Project
Tb2S3 crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. there are three inequivalent Tb3+ sites. In the first Tb3+ site, Tb3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Tb–S bond distances ranging from 2.73–3.14 Å. In the second Tb3+ site, Tb3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Tb–S bond distances ranging from 2.76–2.97 Å. In the third Tb3+ site, Tb3+ is bonded to eight S2- atoms to form distorted edge-sharing TbS8 hexagonal bipyramids. There are a spread of Tb–S bond distances ranging from 2.78–3.06 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 6-coordinate geometry to six Tb3+ atoms. In the second S2- site, S2- is bonded to five Tb3+ atoms to form a mixture of distorted edge, corner, and face-sharing STb5 trigonal bipyramids. In the third S2- site, S2- is bonded to five Tb3+ atoms to form a mixture of distorted edge, corner, and face-sharing STb5 square pyramids.