DOI: 10.17188/1733747
title: Materials Data on Na3H5(SeO4)4 by Materials Project

description: Na3H5(SeO4)4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are three inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form NaO6 octahedra that share a cornercorner with one NaO6 octahedra, corners with six SeO4 tetrahedra, and edges with two equivalent NaO6 octahedra. The corner-sharing octahedral tilt angles are 74°. There are a spread of Na–O bond distances ranging from 2.41–2.48 Å. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form NaO6 octahedra that share a cornercorner with one NaO6 octahedra, corners with six SeO4 tetrahedra, and edges with two equivalent NaO6 octahedra. The corner-sharing octahedral tilt angles are 68°. There are a spread of Na–O bond distances ranging from 2.40–2.54 Å. In the third Na1+ site, Na1+ is bonded to six O2- atoms to form NaO6 octahedra that share corners with two NaO6 octahedra and corners with six SeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 68–74°. There are a spread of Na–O bond distances ranging from 2.42–2.64 Å. There are five inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.71 Å) H–O bond length. In the second 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. In the third H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.04 Å) and one longer (1.55 Å) H–O bond length. 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 linear geometry to two O2- atoms. There is one shorter (1.08 Å) and one longer (1.44 Å) H–O bond length. There are four inequivalent Se6+ sites. In the first Se6+ site, Se6+ is bonded to four O2- atoms to form SeO4 tetrahedra that share corners with five NaO6 octahedra. The corner-sharing octahedra tilt angles range from 28–58°. There is two shorter (1.64 Å) and two longer (1.73 Å) Se–O bond length. In the second Se6+ site, Se6+ is bonded to four O2- atoms to form SeO4 tetrahedra that share corners with five NaO6 octahedra. The corner-sharing octahedra tilt angles range from 36–54°. There are a spread of Se–O bond distances ranging from 1.65–1.75 Å. In the third Se6+ site, Se6+ is bonded to four O2- atoms to form SeO4 tetrahedra that share corners with four NaO6 octahedra. The corner-sharing octahedra tilt angles range from 42–55°. There are a spread of Se–O bond distances ranging from 1.65–1.76 Å. In the fourth Se6+ site, Se6+ is bonded to four O2- atoms to form SeO4 tetrahedra that share corners with four NaO6 octahedra. The corner-sharing octahedra tilt angles range from 39–53°. There are a spread of Se–O bond distances ranging from 1.65–1.75 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one Se6+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one Se6+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+, one H1+, and one Se6+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one H1+, and one Se6+ atom. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to one H1+ and one Se6+ atom. In the sixth O2- site, O2- is bonded in a distorted water-like geometry to one H1+ and one Se6+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one H1+, and one Se6+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one H1+, and one Se6+ atom. In the ninth O2- site, O2- is bonded in a trigonal planar geometry to one Na1+, one H1+, and one Se6+ atom. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+, one H1+, and one Se6+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Na1+ and one Se6+ atom. In the twelfth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Na1+ and one Se6+ atom. In the thirteenth O2- site, O2- is bonded in a distorted water-like geometry to one H1+ and one Se6+ atom. In the fourteenth O2- site, O2- is bonded in a distorted water-like geometry to one H1+ and one Se6+ atom. In the fifteenth O2- site, O2- is bonded in a trigonal planar geometry to two Na1+ and one Se6+ atom. In the sixteenth O2- site, O2- is bonded in a trigonal planar geometry to two Na1+ and one Se6+ atom.