Materials Data on LiSb(PO4)2 by Materials Project

Abstract

LiSb(PO4)2 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Li1+ is bonded to six O2- atoms to form distorted LiO6 octahedra that share corners with four equivalent SbO6 octahedra, corners with four PO4 tetrahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are a spread of Li–O bond distances ranging from 1.99–2.34 Å. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with four equivalent LiO6 octahedra, corners with four PO4 tetrahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are a spread of Sb–O bond distances ranging from 1.98–2.05 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one SbO6 octahedra, corners with three equivalent LiO6 octahedra, and an edgeedge with one SbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–58°. There are a spread of P–O bond distances ranging from 1.48–1.61 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one LiO6 octahedra, corners with three equivalent SbO6 octahedra, and an edgeedge with one LiO6 octahedra. The corner-sharing octahedra tilt angles range from 53–56°. There are a spread of P–O bond distances ranging from 1.49–1.60 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Li1+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to one Sb5+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Sb5+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Sb5+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to one Li1+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one Sb5+ and one P5+ atom.