Materials Data on K5Pb24 by Materials Project

Abstract

K5Pb24 crystallizes in the cubic I-43m space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 3-coordinate geometry to one K and twelve Pb atoms. The K–K bond length is 3.96 Å. There are a spread of K–Pb bond distances ranging from 3.58–3.98 Å. In the second K site, K is bonded in a 12-coordinate geometry to four equivalent K and twelve equivalent Pb atoms. All K–Pb bond lengths are 4.07 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a distorted single-bond geometry to one K and five equivalent Pb atoms. There are a spread of Pb–Pb bond distances ranging from 3.19–3.65 Å. In the second Pb site, Pb is bonded in a 12-coordinate geometry to four K and eight Pb atoms. There are one shorter (3.39 Å) and two longer (3.54 Å) Pb–Pb bond lengths.