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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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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Te2O5 by Materials Project

Te2O5 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent Te5+ sites. In the first Te5+ site, Te5+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 1.90–2.11 Å. In the second Te5+ site, Te5+ is bonded to six O2- atoms to form corner-sharing TeO6 octahedra. The corner-sharing octahedra tilt angles range from 44–46°. There are a spread of Te–O bond distances ranging from 1.89–2.00 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Te5+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Te5+ atoms. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two Te5+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Te5+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Te5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO2 by Materials Project

TeO2 crystallizes in the orthorhombic Pbca space group. The structure is two-dimensional and consists of two TeO2 sheets oriented in the (0, 0, 1) direction. Te4+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Te–O bond distances ranging from 1.93–2.71 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Te4+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to three equivalent Te4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO2 by Materials Project

TeO2 is Rutile structured and crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Te4+ is bonded to six equivalent O2- atoms to form a mixture of corner and edge-sharing TeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are two shorter (2.18 Å) and four longer (2.23 Å) Te–O bond lengths. O2- is bonded in a distorted trigonal planar geometry to three equivalent Te4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO3 by Materials Project

TeO3 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Te6+ is bonded to six equivalent O2- atoms to form corner-sharing TeO6 octahedra. The corner-sharing octahedral tilt angles are 41°. All Te–O bond lengths are 1.95 Å. O2- is bonded in a bent 150 degrees geometry to two equivalent Te6+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Te4O9 by Materials Project

Te4O9 crystallizes in the trigonal R-3 space group. The structure is two-dimensional and consists of three Te4O9 sheets oriented in the (0, 0, 1) direction. there are two inequivalent Te+4.50+ sites. In the first Te+4.50+ site, Te+4.50+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 1.93–2.15 Å. In the second Te+4.50+ site, Te+4.50+ is bonded in an octahedral geometry to six O2- atoms. There is three shorter (1.94 Å) and three longer (1.99 Å) Te–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Te+4.50+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Te+4.50+ atoms. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Te+4.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO2 by Materials Project

TeO2 crystallizes in the tetragonal P4_32_12 space group. The structure is three-dimensional. Te4+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. There are two shorter (1.91 Å) and two longer (2.16 Å) Te–O bond lengths. O2- is bonded in a 2-coordinate geometry to two equivalent Te4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO2 by Materials Project

TeO2 crystallizes in the tetragonal P4_12_12 space group. The structure is three-dimensional. Te4+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. There are two shorter (1.91 Å) and two longer (2.16 Å) Te–O bond lengths. O2- is bonded in a 2-coordinate geometry to two equivalent Te4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO2 by Materials Project

TeO2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Te4+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 1.91–2.17 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Te4+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Te4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO3 by Materials Project

TeO3 crystallizes in the orthorhombic Pnna space group. The structure is three-dimensional. Te6+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TeO6 octahedra. The corner-sharing octahedral tilt angles are 43°. There is four shorter (1.95 Å) and two longer (2.00 Å) Te–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Te6+ atoms. In the second O2- site, O2- is bonded in a water-like geometry to two equivalent Te6+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO2 by Materials Project

TeO2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Te4+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Te–O bond distances ranging from 1.88–2.79 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Te4+ atoms. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to three equivalent Te4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO3 by Materials Project

TeO3 crystallizes in the hexagonal P6_3/mmc space group. The structure is two-dimensional and consists of two TeO3 sheets oriented in the (0, 0, 1) direction. Te6+ is bonded to five O2- atoms to form corner-sharing TeO5 trigonal bipyramids. There is two shorter (1.80 Å) and three longer (2.18 Å) Te–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Te6+ atom. In the second O2- site, O2- is bonded in a trigonal planar geometry to three equivalent Te6+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO3 by Materials Project

TeO3 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. Te6+ is bonded to six O2- atoms to form corner-sharing TeO6 octahedra. The corner-sharing octahedra tilt angles range from 38–39°. There is two shorter (1.94 Å) and four longer (1.95 Å) Te–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Te6+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Te6+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Te6+ atoms. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Te6+ atoms. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Te6+ atoms. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Te6+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TeO2 by Materials Project

TeO2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are three inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Te–O bond distances ranging from 1.92–2.99 Å. In the second Te4+ site, Te4+ is bonded in a 5-coordinate geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 1.92–2.50 Å. In the third Te4+ site, Te4+ is bonded to five O2- atoms to form edge-sharing TeO5 square pyramids. There are a spread of Te–O bond distances ranging from 1.93–2.16 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to three Te4+ atoms. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Te4+ atoms. In the third O2- site, O2- is bonded in a distorted water-like geometry to three Te4+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Te4+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to three Te4+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to three Te4+ atoms.

36 MATERIALS SCIENCE↗