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DOE OSTI2020

Materials Data on LiCu2F5 by Materials Project

LiCu2F5 crystallizes in the orthorhombic Pnma space group. The structure is two-dimensional and consists of two LiCu2F5 sheets oriented in the (0, 0, 1) direction. Li1+ is bonded to five F1- atoms to form distorted LiF5 square pyramids that share edges with four equivalent CuF6 octahedra and edges with two equivalent LiF5 square pyramids. There are a spread of Li–F bond distances ranging from 2.02–2.42 Å. Cu2+ is bonded to six F1- atoms to form distorted CuF6 octahedra that share corners with two equivalent CuF6 octahedra, edges with five equivalent CuF6 octahedra, and edges with two equivalent LiF5 square pyramids. The corner-sharing octahedral tilt angles are 19°. There are a spread of Cu–F bond distances ranging from 1.86–2.54 Å. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded to one Li1+ and four equivalent Cu2+ atoms to form distorted edge-sharing FLiCu4 square pyramids. In the second F1- site, F1- is bonded in a 3-coordinate geometry to three equivalent Cu2+ atoms. In the third F1- site, F1- is bonded in a trigonal non-coplanar geometry to two equivalent Li1+ and one Cu2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2Cu3F9 by Materials Project

Li2Cu3F9 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to five F1- atoms to form distorted LiF5 square pyramids that share corners with two equivalent CuF6 octahedra, an edgeedge with one CuF6 octahedra, and an edgeedge with one LiF5 square pyramid. The corner-sharing octahedra tilt angles range from 15–26°. There are a spread of Li–F bond distances ranging from 1.97–2.24 Å. In the second Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four F1- atoms. There are a spread of Li–F bond distances ranging from 1.87–2.02 Å. There are three inequivalent Cu+2.33+ sites. In the first Cu+2.33+ site, Cu+2.33+ is bonded to six F1- atoms to form distorted CuF6 octahedra that share corners with two equivalent CuF6 octahedra, corners with two equivalent LiF5 square pyramids, an edgeedge with one CuF6 octahedra, and an edgeedge with one LiF5 square pyramid. The corner-sharing octahedra tilt angles range from 44–55°. There are a spread of Cu–F bond distances ranging from 1.86–2.38 Å. In the second Cu+2.33+ site, Cu+2.33+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing CuF6 octahedra. The corner-sharing octahedra tilt angles range from 44–55°. There are a spread of Cu–F bond distances ranging from 1.94–2.14 Å. In the third Cu+2.33+ site, Cu+2.33+ is bonded in a distorted rectangular see-saw-like geometry to five F1- atoms. There are a spread of Cu–F bond distances ranging from 1.82–2.57 Å. There are nine inequivalent F1- sites. In the first F1- site, F1- is bonded in a T-shaped geometry to two Li1+ and one Cu+2.33+ atom. In the second F1- site, F1- is bonded in a rectangular see-saw-like geometry to three Li1+ and one Cu+2.33+ atom. In the third F1- site, F1- is bonded in a 3-coordinate geometry to one Li1+ and two equivalent Cu+2.33+ atoms. In the fourth F1- site, F1- is bonded in a water-like geometry to two equivalent Cu+2.33+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Cu+2.33+ atoms. In the sixth F1- site, F1- is bonded in a 2-coordinate geometry to one Li1+ and two Cu+2.33+ atoms. In the seventh F1- site, F1- is bonded in a 3-coordinate geometry to two Li1+ and one Cu+2.33+ atom. In the eighth F1- site, F1- is bonded in a 2-coordinate geometry to three Cu+2.33+ atoms. In the ninth F1- site, F1- is bonded in a bent 150 degrees geometry to two Cu+2.33+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiCuF4 by Materials Project

LiCuF4 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are four inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Li–F bond distances ranging from 1.92–2.56 Å. In the second Li1+ site, Li1+ is bonded in a 4-coordinate geometry to five F1- atoms. There are a spread of Li–F bond distances ranging from 1.94–2.56 Å. In the third Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five F1- atoms. There are a spread of Li–F bond distances ranging from 1.96–2.46 Å. In the fourth Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Li–F bond distances ranging from 1.91–2.57 Å. There are four inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded to six F1- atoms to form corner-sharing CuF6 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. There are a spread of Cu–F bond distances ranging from 1.81–1.94 Å. In the second Cu3+ site, Cu3+ is bonded to six F1- atoms to form corner-sharing CuF6 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. There are a spread of Cu–F bond distances ranging from 1.88–1.94 Å. In the third Cu3+ site, Cu3+ is bonded to six F1- atoms to form corner-sharing CuF6 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. There is three shorter (1.88 Å) and three longer (1.94 Å) Cu–F bond length. In the fourth Cu3+ site, Cu3+ is bonded to six F1- atoms to form corner-sharing CuF6 octahedra. The corner-sharing octahedra tilt angles range from 1–8°. There are a spread of Cu–F bond distances ranging from 1.81–1.95 Å. There are sixteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a linear geometry to two Cu3+ atoms. In the second F1- site, F1- is bonded to three Li1+ and one Cu3+ atom to form a mixture of edge and corner-sharing FLi3Cu tetrahedra. In the third F1- site, F1- is bonded in a water-like geometry to one Li1+ and one Cu3+ atom. In the fourth F1- site, F1- is bonded to three Li1+ and one Cu3+ atom to form a mixture of edge and corner-sharing FLi3Cu trigonal pyramids. In the fifth F1- site, F1- is bonded in a bent 120 degrees geometry to one Li1+ and one Cu3+ atom. In the sixth F1- site, F1- is bonded in a distorted T-shaped geometry to one Li1+ and two equivalent Cu3+ atoms. In the seventh F1- site, F1- is bonded in a T-shaped geometry to one Li1+ and two equivalent Cu3+ atoms. In the eighth F1- site, F1- is bonded in a T-shaped geometry to one Li1+ and two equivalent Cu3+ atoms. In the ninth F1- site, F1- is bonded in a distorted T-shaped geometry to one Li1+ and two equivalent Cu3+ atoms. In the tenth F1- site, F1- is bonded in a bent 120 degrees geometry to one Li1+ and one Cu3+ atom. In the eleventh F1- site, F1- is bonded to three Li1+ and one Cu3+ atom to form a mixture of edge and corner-sharing FLi3Cu trigonal pyramids. In the twelfth F1- site, F1- is bonded in a water-like geometry to one Li1+ and one Cu3+ atom. In the thirteenth F1- site, F1- is bonded in a distorted rectangular see-saw-like geometry to two Li1+ and two Cu3+ atoms. In the fourteenth F1- site, F1- is bonded to three Li1+ and one Cu3+ atom to form a mixture of edge and corner-sharing FLi3Cu tetrahedra. In the fifteenth F1- site, F1- is bonded in a linear geometry to two Cu3+ atoms. In the sixteenth F1- site, F1- is bonded in a linear geometry to two Cu3+ atoms.

36 MATERIALS SCIENCE↗