Materials Data on CsK2Sb by Materials Project
K2CsSb is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cs1+ is bonded in a 8-coordinate geometry to eight equivalent K1+ and six equivalent Sb3- atoms. All Cs–K bond lengths are 3.79 Å. All Cs–Sb bond lengths are 4.38 Å. K1+ is bonded in a distorted body-centered cubic geometry to four equivalent Cs1+ and four equivalent Sb3- atoms. All K–Sb bond lengths are 3.79 Å. Sb3- is bonded in a distorted body-centered cubic geometry to six equivalent Cs1+ and eight equivalent K1+ atoms.
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