Materials Data on La2S3 by Materials Project
La2S3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of La–S bond distances ranging from 2.88–3.17 Å. In the second La3+ site, La3+ is bonded to seven S2- atoms to form distorted edge-sharing LaS7 pentagonal bipyramids. There are a spread of La–S bond distances ranging from 2.89–3.08 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded to five La3+ atoms to form a mixture of distorted edge, face, and corner-sharing SLa5 trigonal bipyramids. In the second S2- site, S2- is bonded to five La3+ atoms to form a mixture of distorted edge, face, and corner-sharing SLa5 square pyramids. In the third S2- site, S2- is bonded to five La3+ atoms to form a mixture of distorted edge and corner-sharing SLa5 trigonal bipyramids.