Materials Data on La5Sn3C by Materials Project
La5Sn3C crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded in a 6-coordinate geometry to six equivalent Sn atoms. All La–Sn bond lengths are 3.36 Å. In the second La site, La is bonded in a 2-coordinate geometry to five equivalent Sn and two equivalent C atoms. There are a spread of La–Sn bond distances ranging from 3.40–3.92 Å. Both La–C bond lengths are 2.66 Å. Sn is bonded in a 9-coordinate geometry to nine La atoms. C is bonded to six equivalent La atoms to form face-sharing CLa6 octahedra.
36 MATERIALS SCIENCE↗