Materials Data on NaCo2H3(SO5)2 by Materials Project
NaCo2H3(SO5)2 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. 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 2.42–2.75 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four SO4 tetrahedra and edges with two equivalent CoO6 octahedra. There are a spread of Co–O bond distances ranging from 2.02–2.22 Å. There are three 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 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the third H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.14 Å) and one longer (1.28 Å) H–O bond length. There are two inequivalent S6+ sites. In the first S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four equivalent CoO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of S–O bond distances ranging from 1.46–1.53 Å. In the second S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four equivalent CoO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of S–O bond distances ranging from 1.46–1.53 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Na1+ and one S6+ atom. In the second O2- site, O2- is bonded in a distorted water-like geometry to one Na1+ and one S6+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Co2+, and one S6+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Co2+, and one S6+ atom. In the fifth O2- site, O2- is bonded to two equivalent Co2+ and two H1+ atoms to form distorted corner-sharing OCo2H2 tetrahedra. In the sixth O2- site, O2- is bonded to two equivalent Co2+ and two H1+ atoms to form distorted corner-sharing OCo2H2 tetrahedra. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, two equivalent Co2+, and one S6+ atom. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, two equivalent Co2+, and one S6+ atom.