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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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6 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Se2O5 by Materials Project

Se2O5 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of two Se2O5 ribbons oriented in the (0, 1, 0) direction. there are two inequivalent Se5+ sites. In the first Se5+ site, Se5+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of Se–O bond distances ranging from 1.62–1.94 Å. In the second Se5+ site, Se5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.63–1.76 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Se5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two Se5+ atoms. In the third O2- site, O2- is bonded in a single-bond geometry to one Se5+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Se5+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to two Se5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SeO3 by Materials Project

SeO3 crystallizes in the tetragonal P-42_1c space group. The structure is zero-dimensional and consists of two SeO3 clusters. Se6+ is bonded to four O2- atoms to form corner-sharing SeO4 tetrahedra. There are a spread of Se–O bond distances ranging from 1.61–1.84 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Se6+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Se6+ atoms. In the third O2- site, O2- is bonded in a single-bond geometry to one Se6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SeO2 by Materials Project

SeO2 crystallizes in the orthorhombic Pmc2_1 space group. The structure is one-dimensional and consists of four SeO2 ribbons oriented in the (0, 1, 0) direction. Se4+ is bonded in a distorted T-shaped geometry to three O2- atoms. There is one shorter (1.64 Å) and two longer (1.84 Å) Se–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Se4+ atoms. In the second O2- site, O2- is bonded in a single-bond geometry to one Se4+ atom. The O–Se bond length is 1.65 Å. In the third O2- site, O2- is bonded in a single-bond geometry to one Se4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SeO2 by Materials Project

SeO2 crystallizes in the orthorhombic Pmc2_1 space group. The structure is one-dimensional and consists of two SeO2 ribbons oriented in the (0, 1, 0) direction. there are two inequivalent Se4+ sites. In the first Se4+ site, Se4+ is bonded in a distorted T-shaped geometry to three O2- atoms. There is one shorter (1.64 Å) and two longer (1.84 Å) Se–O bond length. In the second Se4+ site, Se4+ is bonded in a distorted T-shaped geometry to three O2- atoms. There is one shorter (1.65 Å) and two longer (1.84 Å) Se–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Se4+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two Se4+ atoms. In the third O2- site, O2- is bonded in a single-bond geometry to one Se4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SeO2 by Materials Project

SeO2 crystallizes in the orthorhombic Pbam space group. The structure is one-dimensional and consists of four SeO2 ribbons oriented in the (1, 0, 0) direction. there are two inequivalent Se4+ sites. In the first Se4+ site, Se4+ is bonded in a distorted T-shaped geometry to three O2- atoms. There is one shorter (1.64 Å) and two longer (1.85 Å) Se–O bond length. In the second Se4+ site, Se4+ is bonded in a distorted T-shaped geometry to three O2- atoms. There is one shorter (1.65 Å) and two longer (1.84 Å) Se–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Se4+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one Se4+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two Se4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SeO2 by Materials Project

SeO2 crystallizes in the tetragonal P4_2/mbc space group. The structure is one-dimensional and consists of four SeO2 ribbons oriented in the (0, 0, 1) direction. Se4+ is bonded in a distorted T-shaped geometry to three O2- atoms. There is one shorter (1.65 Å) and two longer (1.84 Å) Se–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Se4+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Se4+ atoms.

36 MATERIALS SCIENCE↗