DOI: 10.17188/1690727
title: Materials Data on Na2TeH6SO10 by Materials Project

description: Na2H6TeSO10 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with two equivalent SO4 tetrahedra, edges with two equivalent TeO6 octahedra, and an edgeedge with one NaO6 pentagonal pyramid. There are a spread of Na–O bond distances ranging from 2.35–2.56 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 pentagonal pyramids that share corners with two equivalent TeO6 octahedra, corners with two equivalent SO4 tetrahedra, an edgeedge with one NaO6 octahedra, and an edgeedge with one SO4 tetrahedra. The corner-sharing octahedra tilt angles range from 41–42°. There are a spread of Na–O bond distances ranging from 2.36–2.70 Å. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the fourth H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.63 Å) H–O bond length. In the fifth H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.66 Å) H–O bond length. In the sixth H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.68 Å) H–O bond length. Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with two equivalent NaO6 pentagonal pyramids and edges with two equivalent NaO6 octahedra. There are a spread of Te–O bond distances ranging from 1.93–1.97 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with two equivalent NaO6 octahedra, corners with two equivalent NaO6 pentagonal pyramids, and an edgeedge with one NaO6 pentagonal pyramid. The corner-sharing octahedra tilt angles range from 52–65°. There are a spread of S–O bond distances ranging from 1.48–1.52 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+ and one S6+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Na1+, one H1+, and one Te6+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Na1+, one H1+, and one Te6+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one Na1+, one H1+, and one Te6+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Na1+, one H1+, and one Te6+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one H1+, and one Te6+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one H1+, and one Te6+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one H1+, and one S6+ atom. In the tenth O2- site, O2- is bonded in a distorted tetrahedral geometry to one Na1+, two H1+, and one S6+ atom.