Materials Data on SmCoSi2 by Materials Project
SmCoSi2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sm is bonded in a 4-coordinate geometry to four equivalent Co and ten Si atoms. All Sm–Co bond lengths are 3.13 Å. There are a spread of Sm–Si bond distances ranging from 3.06–3.19 Å. Co is bonded in a 9-coordinate geometry to four equivalent Sm and five Si atoms. There are a spread of Co–Si bond distances ranging from 2.25–2.34 Å. There are two inequivalent Si sites. In the first Si site, Si is bonded in a 8-coordinate geometry to four equivalent Sm and four equivalent Co atoms. In the second Si site, Si is bonded in a 9-coordinate geometry to six equivalent Sm, one Co, and two equivalent Si atoms. Both Si–Si bond lengths are 2.46 Å.
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