Materials Data on SmC10 by Materials Project
SmC10 crystallizes in the cubic Im-3 space group. The structure is three-dimensional. Sm2+ is bonded in a 2-coordinate geometry to twenty-two C+0.20- atoms. There are a spread of Sm–C bond distances ranging from 2.73–3.33 Å. There are three inequivalent C+0.20- sites. In the first C+0.20- site, C+0.20- is bonded in a distorted trigonal planar geometry to two equivalent Sm2+ and three C+0.20- atoms. There are a spread of C–C bond distances ranging from 1.43–1.46 Å. In the second C+0.20- site, C+0.20- is bonded in a 3-coordinate geometry to two equivalent Sm2+ and three C+0.20- atoms. The C–C bond length is 1.44 Å. In the third C+0.20- site, C+0.20- is bonded in a 4-coordinate geometry to three equivalent Sm2+ and three C+0.20- atoms. The C–C bond length is 1.46 Å.