Materials Data on Yb5Si3C by Materials Project
Yb5Si3C crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Yb3+ sites. In the first Yb3+ site, Yb3+ is bonded in a 6-coordinate geometry to six equivalent Si4- atoms. All Yb–Si bond lengths are 3.05 Å. In the second Yb3+ site, Yb3+ is bonded in a 7-coordinate geometry to five equivalent Si4- and two equivalent C3- atoms. There are a spread of Yb–Si bond distances ranging from 3.14–3.47 Å. Both Yb–C bond lengths are 2.49 Å. Si4- is bonded in a 9-coordinate geometry to nine Yb3+ atoms. C3- is bonded to six equivalent Yb3+ atoms to form face-sharing CYb6 octahedra.
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