Materials Data on K2C by Materials Project
CK2 is Fluorite structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. K1+ is bonded to four equivalent C2- atoms to form a mixture of corner and edge-sharing KC4 tetrahedra. All K–C bond lengths are 3.12 Å. C2- is bonded in a body-centered cubic geometry to eight equivalent K1+ atoms.
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