Materials Data on Sm2Al by Materials Project
Sm2Al is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Sm sites. In the first Sm site, Sm is bonded in a 5-coordinate geometry to five equivalent Al atoms. There are a spread of Sm–Al bond distances ranging from 3.13–3.46 Å. In the second Sm site, Sm is bonded in a 3-coordinate geometry to five equivalent Al atoms. There are a spread of Sm–Al bond distances ranging from 3.21–3.65 Å. Al is bonded in a 10-coordinate geometry to ten Sm atoms.
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