Materials Data on La2Si3 by Materials Project
La2Si3 crystallizes in the orthorhombic Imm2 space group. The structure is three-dimensional. there are two inequivalent La2+ sites. In the first La2+ site, La2+ is bonded in a 8-coordinate geometry to eight Si+1.33- atoms. There are a spread of La–Si bond distances ranging from 3.12–3.29 Å. In the second La2+ site, La2+ is bonded in a 10-coordinate geometry to ten Si+1.33- atoms. There are a spread of La–Si bond distances ranging from 3.15–3.27 Å. There are three inequivalent Si+1.33- sites. In the first Si+1.33- site, Si+1.33- is bonded in a 7-coordinate geometry to six La2+ and one Si+1.33- atom. The Si–Si bond length is 2.35 Å. In the second Si+1.33- site, Si+1.33- is bonded in a 8-coordinate geometry to six La2+ and two equivalent Si+1.33- atoms. Both Si–Si bond lengths are 2.40 Å. In the third Si+1.33- site, Si+1.33- is bonded in a 9-coordinate geometry to six La2+ and three Si+1.33- atoms.