Materials Data on Li6Br3N by Materials Project

Abstract

Li6NBr3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 1-coordinate geometry to one N3- and three Br1- atoms. The Li–N bond length is 1.96 Å. There are one shorter (2.65 Å) and two longer (2.81 Å) Li–Br bond lengths. In the second Li1+ site, Li1+ is bonded in a 1-coordinate geometry to one N3- and four Br1- atoms. The Li–N bond length is 1.94 Å. There are a spread of Li–Br bond distances ranging from 2.64–3.22 Å. In the third Li1+ site, Li1+ is bonded in a 1-coordinate geometry to one N3- and three Br1- atoms. The Li–N bond length is 1.95 Å. There are a spread of Li–Br bond distances ranging from 2.65–2.89 Å. N3- is bonded to six Li1+ atoms to form NLi6 octahedra that share corners with six equivalent BrLi6 octahedra. The corner-sharing octahedra tilt angles range from 25–38°. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 7-coordinate geometry to seven Li1+ atoms. In the second Br1- site, Br1- is bonded to six Li1+ atoms to form BrLi6 octahedra that share corners with six equivalent NLi6 octahedra. The corner-sharing octahedra tilt angles range from 25–38°.