Materials Data on KLiYF5 by Materials Project
LiKYF5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. K1+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are a spread of K–F bond distances ranging from 2.66–3.17 Å. Li1+ is bonded in a 4-coordinate geometry to five F1- atoms. There are a spread of Li–F bond distances ranging from 1.89–2.64 Å. Y3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Y–F bond distances ranging from 2.23–2.36 Å. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a 4-coordinate geometry to two equivalent K1+, one Li1+, and one Y3+ atom. In the second F1- site, F1- is bonded in a 1-coordinate geometry to one K1+, one Li1+, and two equivalent Y3+ atoms. In the third F1- site, F1- is bonded in a 4-coordinate geometry to two equivalent K1+ and two equivalent Y3+ atoms. In the fourth F1- site, F1- is bonded in a 5-coordinate geometry to two equivalent K1+, one Li1+, and two equivalent Y3+ atoms. In the fifth F1- site, F1- is bonded in a 2-coordinate geometry to two equivalent K1+, two equivalent Li1+, and one Y3+ atom.