Materials Data on Y5Si3H by Materials Project
Y5Si3H crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Y sites. In the first Y site, Y is bonded in a 6-coordinate geometry to six equivalent Si atoms. All Y–Si bond lengths are 3.05 Å. In the second Y site, Y is bonded in a 7-coordinate geometry to five equivalent Si and two equivalent H atoms. There are a spread of Y–Si bond distances ranging from 2.90–3.35 Å. Both Y–H bond lengths are 2.63 Å. Si is bonded in a 9-coordinate geometry to nine Y atoms. H is bonded to six equivalent Y atoms to form face-sharing HY6 octahedra.
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