Materials Data on UFeSi by Materials Project
UFeSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. U is bonded in a 12-coordinate geometry to two equivalent U, four equivalent Fe, and five equivalent Si atoms. Both U–U bond lengths are 2.86 Å. There are a spread of U–Fe bond distances ranging from 2.73–2.99 Å. There are a spread of U–Si bond distances ranging from 2.88–2.92 Å. Fe is bonded in a 8-coordinate geometry to four equivalent U and four equivalent Si atoms. There are a spread of Fe–Si bond distances ranging from 2.35–2.45 Å. Si is bonded in a 9-coordinate geometry to five equivalent U and four equivalent Fe atoms.
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