Materials Data on Na2Ti2Sb2O by Materials Project

Abstract

Na2Ti2Sb2O crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Na1+ is bonded in a 6-coordinate geometry to five equivalent Sb3- and one O2- atom. There are four shorter (3.12 Å) and one longer (3.30 Å) Na–Sb bond lengths. The Na–O bond length is 3.07 Å. Ti3+ is bonded in a linear geometry to four equivalent Sb3- and two equivalent O2- atoms. All Ti–Sb bond lengths are 2.90 Å. Both Ti–O bond lengths are 2.08 Å. Sb3- is bonded in a 9-coordinate geometry to five equivalent Na1+ and four equivalent Ti3+ atoms. O2- is bonded in a square co-planar geometry to two equivalent Na1+ and four equivalent Ti3+ atoms.