DOI: 10.17188/1270039
title: Materials Data on Na5B2P3O13 by Materials Project

description: Na5B2P3O13 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are five inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.31–2.54 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with six PO4 tetrahedra, an edgeedge with one NaO5 trigonal bipyramid, and a faceface with one NaO5 trigonal bipyramid. There are a spread of Na–O bond distances ranging from 2.41–2.93 Å. In the third Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.33–2.51 Å. In the fourth Na1+ site, Na1+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.22–2.84 Å. In the fifth Na1+ site, Na1+ is bonded to five O2- atoms to form NaO5 trigonal bipyramids that share corners with five PO4 tetrahedra, an edgeedge with one NaO6 octahedra, and a faceface with one NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.36–2.59 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded to four O2- atoms to form BO4 tetrahedra that share a cornercorner with one BO4 tetrahedra and corners with three PO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.43–1.52 Å. In the second B3+ site, B3+ is bonded to four O2- atoms to form BO4 tetrahedra that share a cornercorner with one BO4 tetrahedra and corners with three PO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.45–1.53 Å. There are three inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent NaO6 octahedra, corners with two BO4 tetrahedra, and corners with two equivalent NaO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 27–64°. There are a spread of P–O bond distances ranging from 1.52–1.61 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent NaO6 octahedra, corners with two BO4 tetrahedra, and corners with two equivalent NaO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 41–55°. There are a spread of P–O bond distances ranging from 1.52–1.61 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent NaO6 octahedra, corners with two BO4 tetrahedra, and a cornercorner with one NaO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 48–58°. There are a spread of P–O bond distances ranging from 1.52–1.61 Å. There are thirteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+, one B3+, and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+, one B3+, and one P5+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+, one B3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one B3+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to four Na1+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+ and two B3+ atoms. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Na1+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+, one B3+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+, one B3+, and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one P5+ atom.