Materials Data on CsK2 by Materials Project
K2Cs is Hexagonal Laves structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional and consists of four cesium molecules and one K framework. In the K framework, there are two inequivalent K sites. In the first K site, K is bonded in a distorted hexagonal planar geometry to six equivalent K atoms. All K–K bond lengths are 4.55 Å. In the second K site, K is bonded in a distorted hexagonal planar geometry to six K atoms. There are two shorter (4.50 Å) and two longer (4.57 Å) K–K bond lengths.
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