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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LiCu2F6 by Materials Project

LiCu2F6 is zeta iron carbide-derived structured and crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Li1+ is bonded to six F1- atoms to form LiF6 octahedra that share corners with twelve equivalent CuF6 octahedra. The corner-sharing octahedra tilt angles range from 50–53°. There are a spread of Li–F bond distances ranging from 2.08–2.21 Å. Cu+2.50+ is bonded to six F1- atoms to form CuF6 octahedra that share corners with six equivalent LiF6 octahedra and edges with three equivalent CuF6 octahedra. The corner-sharing octahedra tilt angles range from 50–53°. There are a spread of Cu–F bond distances ranging from 1.93–2.00 Å. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to one Li1+ and two equivalent Cu+2.50+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to one Li1+ and two equivalent Cu+2.50+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to one Li1+ and two equivalent Cu+2.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiCu2F6 by Materials Project

LiCu2F6 is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Li1+ is bonded to six F1- atoms to form LiF6 octahedra that share corners with eight CuF6 octahedra, an edgeedge with one LiF6 octahedra, and an edgeedge with one CuF6 octahedra. The corner-sharing octahedra tilt angles range from 44–57°. There are a spread of Li–F bond distances ranging from 1.98–2.15 Å. There are two inequivalent Cu+2.50+ sites. In the first Cu+2.50+ site, Cu+2.50+ is bonded to six F1- atoms to form CuF6 octahedra that share corners with two equivalent LiF6 octahedra, corners with six CuF6 octahedra, an edgeedge with one LiF6 octahedra, and an edgeedge with one CuF6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Cu–F bond distances ranging from 1.95–2.04 Å. In the second Cu+2.50+ site, Cu+2.50+ is bonded to six F1- atoms to form CuF6 octahedra that share corners with two equivalent CuF6 octahedra, corners with six equivalent LiF6 octahedra, and edges with two CuF6 octahedra. The corner-sharing octahedra tilt angles range from 44–57°. There are a spread of Cu–F bond distances ranging from 1.88–2.04 Å. There are six inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to one Li1+ and two equivalent Cu+2.50+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to one Li1+ and two Cu+2.50+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to two equivalent Li1+ and one Cu+2.50+ atom. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to one Li1+ and two equivalent Cu+2.50+ atoms. In the fifth F1- site, F1- is bonded in a trigonal planar geometry to one Li1+ and two Cu+2.50+ atoms. In the sixth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Cu+2.50+ atoms.

36 MATERIALS SCIENCE↗