Materials Data on KC10 by Materials Project
KC10 crystallizes in the cubic Im-3 space group. The structure is three-dimensional. K1+ is bonded in a 6-coordinate geometry to eighteen C+0.10- atoms. There are a spread of K–C bond distances ranging from 3.26–3.48 Å. There are three inequivalent C+0.10- sites. In the first C+0.10- site, C+0.10- is bonded in a distorted trigonal planar geometry to two equivalent K1+ and three C+0.10- atoms. There is one shorter (1.43 Å) and two longer (1.45 Å) C–C bond length. In the second C+0.10- site, C+0.10- is bonded in a distorted trigonal planar geometry to one K1+ and three C+0.10- atoms. The C–C bond length is 1.45 Å. In the third C+0.10- site, C+0.10- is bonded in a distorted trigonal planar geometry to three equivalent K1+ and three C+0.10- atoms. The C–C bond length is 1.43 Å.