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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on ScTe by Materials Project

ScTe is Molybdenum Carbide MAX Phase-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sc2+ is bonded to six equivalent Te2- atoms to form a mixture of corner, edge, and face-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 48°. All Sc–Te bond lengths are 2.96 Å. Te2- is bonded to six equivalent Sc2+ atoms to form a mixture of distorted corner and edge-sharing TeSc6 pentagonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2Te3 by Materials Project

Sc2Te3 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. there are two inequivalent Sc3+ sites. In the first Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 1°. There are four shorter (2.93 Å) and two longer (2.96 Å) Sc–Te bond lengths. In the second Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 1°. There are two shorter (2.92 Å) and four longer (2.94 Å) Sc–Te bond lengths. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms. In the second Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2Te by Materials Project

Sc2Te crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are six inequivalent Sc sites. In the first Sc site, Sc is bonded in a 2-coordinate geometry to two Te atoms. There are one shorter (2.98 Å) and one longer (3.16 Å) Sc–Te bond lengths. In the second Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. There are two shorter (2.99 Å) and two longer (3.01 Å) Sc–Te bond lengths. In the third Sc site, Sc is bonded to five Te atoms to form a mixture of distorted corner and edge-sharing ScTe5 trigonal bipyramids. There are a spread of Sc–Te bond distances ranging from 2.94–2.98 Å. In the fourth Sc site, Sc is bonded in a 3-coordinate geometry to three Te atoms. There are one shorter (2.94 Å) and two longer (2.96 Å) Sc–Te bond lengths. In the fifth Sc site, Sc is bonded to five Te atoms to form a mixture of distorted corner and edge-sharing ScTe5 square pyramids. There are one shorter (2.87 Å) and four longer (2.93 Å) Sc–Te bond lengths. In the sixth Sc site, Sc is bonded in a 5-coordinate geometry to five Te atoms. There are a spread of Sc–Te bond distances ranging from 2.97–3.32 Å. There are three inequivalent Te sites. In the first Te site, Te is bonded in a 9-coordinate geometry to nine Sc atoms. In the second Te site, Te is bonded in a 8-coordinate geometry to eight Sc atoms. In the third Te site, Te is bonded to seven Sc atoms to form distorted edge-sharing TeSc7 pentagonal bipyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2Te3 by Materials Project

Sc2Te3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Sc3+ sites. In the first Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of corner and edge-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of Sc–Te bond distances ranging from 2.91–2.95 Å. In the second Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of corner and edge-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of Sc–Te bond distances ranging from 2.92–2.94 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms. In the second Te2- site, Te2- is bonded in a square co-planar geometry to four Sc3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc8Te3 by Materials Project

Sc8Te3 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are sixteen inequivalent Sc sites. In the first Sc site, Sc is bonded in a 2-coordinate geometry to two equivalent Te atoms. Both Sc–Te bond lengths are 3.00 Å. In the second Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. There are two shorter (2.97 Å) and two longer (2.98 Å) Sc–Te bond lengths. In the third Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. There are two shorter (2.98 Å) and two longer (3.01 Å) Sc–Te bond lengths. In the fourth Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. There are two shorter (2.96 Å) and two longer (3.00 Å) Sc–Te bond lengths. In the fifth Sc site, Sc is bonded in a 3-coordinate geometry to three Te atoms. There are two shorter (2.91 Å) and one longer (2.96 Å) Sc–Te bond lengths. In the sixth Sc site, Sc is bonded in a distorted rectangular see-saw-like geometry to four Te atoms. There are a spread of Sc–Te bond distances ranging from 2.95–3.13 Å. In the seventh Sc site, Sc is bonded in a 3-coordinate geometry to three Te atoms. There are one shorter (2.96 Å) and two longer (3.00 Å) Sc–Te bond lengths. In the eighth Sc site, Sc is bonded in a distorted single-bond geometry to one Te atom. The Sc–Te bond length is 3.00 Å. In the ninth Sc site, Sc is bonded in a 3-coordinate geometry to three Te atoms. There are two shorter (2.92 Å) and one longer (2.93 Å) Sc–Te bond lengths. In the tenth Sc site, Sc is bonded in a distorted L-shaped geometry to two Te atoms. There are one shorter (3.04 Å) and one longer (3.07 Å) Sc–Te bond lengths. In the eleventh Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. There are two shorter (3.00 Å) and two longer (3.02 Å) Sc–Te bond lengths. In the twelfth Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. There are two shorter (3.00 Å) and two longer (3.02 Å) Sc–Te bond lengths. In the thirteenth Sc site, Sc is bonded in a distorted L-shaped geometry to two Te atoms. There are one shorter (3.01 Å) and one longer (3.07 Å) Sc–Te bond lengths. In the fourteenth Sc site, Sc is bonded in a 5-coordinate geometry to five Te atoms. There are a spread of Sc–Te bond distances ranging from 2.97–3.15 Å. In the fifteenth Sc site, Sc is bonded in a 1-coordinate geometry to one Te atom. The Sc–Te bond length is 3.12 Å. In the sixteenth Sc site, Sc is bonded in a distorted linear geometry to two Te atoms. There are one shorter (2.95 Å) and one longer (2.98 Å) Sc–Te bond lengths. There are six inequivalent Te sites. In the first Te site, Te is bonded in a 8-coordinate geometry to eight Sc atoms. In the second Te site, Te is bonded in a 8-coordinate geometry to eight Sc atoms. In the third Te site, Te is bonded to seven Sc atoms to form distorted edge-sharing TeSc7 pentagonal bipyramids. In the fourth Te site, Te is bonded in a 8-coordinate geometry to eight Sc atoms. In the fifth Te site, Te is bonded in a 9-coordinate geometry to nine Sc atoms. In the sixth Te site, Te is bonded in a 8-coordinate geometry to eight Sc atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2Te3 by Materials Project

Sc2Te3 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are five inequivalent Sc3+ sites. In the first Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are four shorter (2.92 Å) and two longer (2.94 Å) Sc–Te bond lengths. In the second Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 1°. There are a spread of Sc–Te bond distances ranging from 2.92–2.95 Å. In the third Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of face, edge, and corner-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 1–49°. There are a spread of Sc–Te bond distances ranging from 2.89–2.94 Å. In the fourth Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of face, edge, and corner-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 48–49°. There are a spread of Sc–Te bond distances ranging from 2.91–2.97 Å. In the fifth Sc3+ site, Sc3+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 47–48°. There are a spread of Sc–Te bond distances ranging from 2.92–2.94 Å. There are six inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms. In the second Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms. In the third Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms. In the fourth Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms. In the fifth Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms. In the sixth Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four Sc3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc3Te4 by Materials Project

Sc3Te4 is MAX Phase-derived structured and crystallizes in the trigonal R3m space group. The structure is two-dimensional and consists of three Sc3Te4 sheets oriented in the (0, 0, 1) direction. there are three inequivalent Sc+2.67+ sites. In the first Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are three shorter (2.86 Å) and three longer (3.04 Å) Sc–Te bond lengths. In the second Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of face, edge, and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are three shorter (2.84 Å) and three longer (3.08 Å) Sc–Te bond lengths. In the third Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of face, edge, and corner-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 2–47°. There are three shorter (2.96 Å) and three longer (2.97 Å) Sc–Te bond lengths. There are four inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a distorted T-shaped geometry to three equivalent Sc+2.67+ atoms. In the second Te2- site, Te2- is bonded to six Sc+2.67+ atoms to form a mixture of edge and corner-sharing TeSc6 octahedra. In the third Te2- site, Te2- is bonded to six Sc+2.67+ atoms to form a mixture of distorted edge and corner-sharing TeSc6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 0°. In the fourth Te2- site, Te2- is bonded in a distorted T-shaped geometry to three equivalent Sc+2.67+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc3Te by Materials Project

Sc3Te is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sc is bonded to eight equivalent Sc and four equivalent Te atoms to form distorted ScSc8Te4 cuboctahedra that share corners with four equivalent TeSc12 cuboctahedra, corners with fourteen equivalent ScSc8Te4 cuboctahedra, edges with six equivalent TeSc12 cuboctahedra, edges with twelve equivalent ScSc8Te4 cuboctahedra, faces with four equivalent TeSc12 cuboctahedra, and faces with sixteen equivalent ScSc8Te4 cuboctahedra. There are a spread of Sc–Sc bond distances ranging from 3.15–3.19 Å. There are two shorter (3.14 Å) and two longer (3.18 Å) Sc–Te bond lengths. Te is bonded to twelve equivalent Sc atoms to form TeSc12 cuboctahedra that share corners with six equivalent TeSc12 cuboctahedra, corners with twelve equivalent ScSc8Te4 cuboctahedra, edges with eighteen equivalent ScSc8Te4 cuboctahedra, faces with eight equivalent TeSc12 cuboctahedra, and faces with twelve equivalent ScSc8Te4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2Te3 by Materials Project

Sc2Te3 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Sc3+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 0–3°. There are a spread of Sc–Te bond distances ranging from 2.92–2.94 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a square co-planar geometry to four equivalent Sc3+ atoms. In the second Te2- site, Te2- is bonded in a rectangular see-saw-like geometry to four equivalent Sc3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScTe3 by Materials Project

ScTe3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sc3+ is bonded to twelve equivalent Te1- atoms to form a mixture of distorted corner and face-sharing ScTe12 cuboctahedra. There are six shorter (3.15 Å) and six longer (3.58 Å) Sc–Te bond lengths. Te1- is bonded in a 2-coordinate geometry to four equivalent Sc3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc9Te2 by Materials Project

Sc9Te2 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. there are fourteen inequivalent Sc sites. In the first Sc site, Sc is bonded in a 2-coordinate geometry to two Sc and two Te atoms. There are one shorter (3.12 Å) and one longer (3.23 Å) Sc–Sc bond lengths. There are one shorter (3.01 Å) and one longer (3.22 Å) Sc–Te bond lengths. In the second Sc site, Sc is bonded in a 2-coordinate geometry to one Sc and two equivalent Te atoms. The Sc–Sc bond length is 3.36 Å. Both Sc–Te bond lengths are 2.98 Å. In the third Sc site, Sc is bonded in a distorted L-shaped geometry to one Sc and two equivalent Te atoms. The Sc–Sc bond length is 3.38 Å. Both Sc–Te bond lengths are 2.95 Å. In the fourth Sc site, Sc is bonded in a 2-coordinate geometry to two Sc and two Te atoms. There are one shorter (3.13 Å) and one longer (3.25 Å) Sc–Sc bond lengths. There are one shorter (3.00 Å) and one longer (3.23 Å) Sc–Te bond lengths. In the fifth Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. There are two shorter (2.99 Å) and two longer (3.01 Å) Sc–Te bond lengths. In the sixth Sc site, Sc is bonded in a 2-coordinate geometry to one Sc and two equivalent Te atoms. The Sc–Sc bond length is 3.36 Å. Both Sc–Te bond lengths are 2.98 Å. In the seventh Sc site, Sc is bonded in a 11-coordinate geometry to eleven Sc atoms. There are a spread of Sc–Sc bond distances ranging from 3.00–3.43 Å. In the eighth Sc site, Sc is bonded in a 1-coordinate geometry to two Sc and one Te atom. The Sc–Sc bond length is 3.14 Å. The Sc–Te bond length is 3.11 Å. In the ninth Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. All Sc–Te bond lengths are 3.00 Å. In the tenth Sc site, Sc is bonded in a distorted L-shaped geometry to one Sc and two equivalent Te atoms. The Sc–Sc bond length is 3.38 Å. Both Sc–Te bond lengths are 2.96 Å. In the eleventh Sc site, Sc is bonded in a 4-coordinate geometry to one Sc and four Te atoms. There are two shorter (3.02 Å) and two longer (3.09 Å) Sc–Te bond lengths. In the twelfth Sc site, Sc is bonded in a 11-coordinate geometry to eleven Sc atoms. There are two shorter (3.00 Å) and one longer (3.44 Å) Sc–Sc bond lengths. In the thirteenth Sc site, Sc is bonded in a 1-coordinate geometry to two Sc and one Te atom. The Sc–Te bond length is 3.11 Å. In the fourteenth Sc site, Sc is bonded in a 4-coordinate geometry to one Sc and four Te atoms. There are two shorter (3.04 Å) and two longer (3.09 Å) Sc–Te bond lengths. There are two inequivalent Te sites. In the first Te site, Te is bonded in a 9-coordinate geometry to nine Sc atoms. In the second Te site, Te is bonded in a 9-coordinate geometry to nine Sc atoms.

36 MATERIALS SCIENCE↗