Materials Data on Na3B6NO13 by Materials Project

Abstract

Na3B6NO13 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Na–O bond distances ranging from 2.49–2.88 Å. In the second Na1+ site, Na1+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.43–2.75 Å. In the third Na1+ site, Na1+ is bonded to six O2- atoms to form NaO6 octahedra that share corners with four BO4 tetrahedra. There are a spread of Na–O bond distances ranging from 2.37–2.66 Å. There are four inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.35 Å) and two longer (1.38 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.37 Å) and two longer (1.38 Å) B–O bond length. In the third B3+ site, B3+ is bonded to four O2- atoms to form BO4 tetrahedra that share corners with two equivalent NaO6 octahedra and corners with two equivalent BO4 tetrahedra. The corner-sharing octahedral tilt angles are 68°. There are a spread of B–O bond distances ranging from 1.44–1.54 Å. In the fourth B3+ site, B3+ is bonded to four O2- atoms to form BO4 tetrahedra that share a cornercorner with one NaO6 octahedra and corners with two BO4 tetrahedra. The corner-sharing octahedral tilt angles are 67°. There are a spread of B–O bond distances ranging from 1.45–1.53 Å. N5+ is bonded in a trigonal planar geometry to three O2- atoms. All N–O bond lengths are 1.27 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two B3+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+ and two B3+ atoms. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Na1+ and two B3+ atoms. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+ and one N5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Na1+ and two B3+ atoms. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+ and two B3+ atoms. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one N5+ atom. In the eighth O2- site, O2- is bonded in a trigonal planar geometry to three B3+ atoms.