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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LiAsF6 by Materials Project

LiAsF6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Li1+ is bonded to six equivalent F1- atoms to form LiF6 octahedra that share corners with six equivalent AsF6 octahedra. The corner-sharing octahedral tilt angles are 31°. All Li–F bond lengths are 2.08 Å. As5+ is bonded to six equivalent F1- atoms to form AsF6 octahedra that share corners with six equivalent LiF6 octahedra. The corner-sharing octahedral tilt angles are 31°. All As–F bond lengths are 1.77 Å. F1- is bonded in a bent 150 degrees geometry to one Li1+ and one As5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li3AsF6 by Materials Project

Li3AsF6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to twelve equivalent F1- atoms to form LiF12 cuboctahedra that share corners with twelve equivalent LiF12 cuboctahedra, faces with six equivalent LiF12 cuboctahedra, faces with four equivalent LiF6 octahedra, and faces with four equivalent AsF6 octahedra. All Li–F bond lengths are 2.84 Å. In the second Li1+ site, Li1+ is bonded to six equivalent F1- atoms to form LiF6 octahedra that share corners with six equivalent AsF6 octahedra and faces with eight equivalent LiF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Li–F bond lengths are 1.98 Å. As3+ is bonded to six equivalent F1- atoms to form AsF6 octahedra that share corners with six equivalent LiF6 octahedra and faces with eight equivalent LiF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All As–F bond lengths are 2.04 Å. F1- is bonded in a linear geometry to five Li1+ and one As3+ atom.

36 MATERIALS SCIENCE↗