Materials Data on Sm9Ga4 by Materials Project
Sm9Ga4 crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. there are three inequivalent Sm sites. In the first Sm site, Sm is bonded in a square co-planar geometry to four equivalent Ga atoms. All Sm–Ga bond lengths are 3.08 Å. In the second Sm site, Sm is bonded in a 1-coordinate geometry to four equivalent Ga atoms. There are a spread of Sm–Ga bond distances ranging from 3.02–3.54 Å. In the third Sm site, Sm is bonded in a 3-coordinate geometry to five equivalent Ga atoms. There are three shorter (3.07 Å) and two longer (3.74 Å) Sm–Ga bond lengths. Ga is bonded in a 10-coordinate geometry to ten Sm atoms.
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