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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Na2NiH12(SO7)2 by Materials Project

Na2NiH12(SO7)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Na1+ is bonded to five O2- atoms to form distorted NaO5 trigonal bipyramids that share a cornercorner with one NiO6 octahedra and corners with four equivalent SO4 tetrahedra. The corner-sharing octahedral tilt angles are 46°. There are a spread of Na–O bond distances ranging from 2.42–2.60 Å. Ni2+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with two equivalent NaO5 trigonal bipyramids. There are a spread of Ni–O bond distances ranging from 2.01–2.16 Å. There are six inequivalent H1+ sites. In the first 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 (1.65 Å) H–O bond length. In the second 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 third 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 fourth H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.00 Å) and one longer (1.63 Å) H–O bond length. In the fifth 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 sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four equivalent NaO5 trigonal bipyramids. There is two shorter (1.49 Å) and two longer (1.50 Å) S–O bond length. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Na1+, one Ni2+, and two H1+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one H1+, and one S6+ atom. In the third O2- site, O2- is bonded in a distorted water-like geometry to one Ni2+ and two H1+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Ni2+ and two H1+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+, one H1+, and one S6+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+ and one S6+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+ and one S6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na2NiH8(SO6)2 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaNi2H3(SO5)2 by Materials Project

NaNi2H3(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 2.41–2.80 Å. Ni2+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with four SO4 tetrahedra and edges with two equivalent NiO6 octahedra. There are a spread of Ni–O bond distances ranging from 2.01–2.16 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 0.99 Å. In the third H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.18 Å) and one longer (1.23 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 NiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–52°. There are a spread of S–O bond distances ranging from 1.46–1.54 Å. In the second S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–52°. There are a spread of S–O bond distances ranging from 1.46–1.54 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ni2+ and two H1+ atoms to form distorted corner-sharing ONi2H2 tetrahedra. In the second O2- site, O2- is bonded to two equivalent Ni2+ and two H1+ atoms to form distorted corner-sharing ONi2H2 tetrahedra. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Ni2+, and one S6+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Ni2+, and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to one Na1+ and one S6+ atom. In the sixth O2- site, O2- is bonded in a distorted water-like geometry to one Na1+ and one S6+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, two equivalent Ni2+, and one S6+ atom. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, two equivalent Ni2+, and one S6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaNi2H3(SO5)2 by Materials Project

NaNi2H3(SO5)2 crystallizes in the monoclinic Cm space group. The structure is two-dimensional and consists of one NaNi2H3(SO5)2 sheet oriented in the (2, 0, 1) direction. Na1+ is bonded in a square co-planar geometry to four O2- atoms. There are two shorter (2.37 Å) and two longer (2.38 Å) Na–O bond lengths. Ni2+ is bonded to six O2- atoms to form face-sharing NiO6 octahedra. There are a spread of Ni–O bond distances ranging from 2.01–2.19 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 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.02 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are two inequivalent S6+ sites. In the first S6+ site, S6+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.47 Å) and one longer (2.01 Å) S–O bond length. In the second S6+ site, S6+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.47 Å) and one longer (2.01 Å) S–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Ni2+ and one O2- atom. The O–O bond length is 1.52 Å. In the second O2- site, O2- is bonded in a single-bond geometry to two equivalent Ni2+, one H1+, and one O2- atom. The O–O bond length is 1.52 Å. In the third O2- site, O2- is bonded in a single-bond geometry to two equivalent Ni2+, one H1+, and one S6+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Na1+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Na1+ and one S6+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to two equivalent Ni2+, one H1+, and one S6+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ni2+ and one O2- atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Ni2+ and one O2- atom.

36 MATERIALS SCIENCE↗