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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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9 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on SnSe by Materials Project

SnSe crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two SnSe sheets oriented in the (0, 1, 0) direction. Sn2+ is bonded to five equivalent Se2- atoms to form a mixture of corner and edge-sharing SnSe5 square pyramids. There are one shorter (2.74 Å) and four longer (3.04 Å) Sn–Se bond lengths. Se2- is bonded to five equivalent Sn2+ atoms to form a mixture of corner and edge-sharing SeSn5 square pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSe by Materials Project

SnSe is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sn2+ is bonded to six equivalent Se2- atoms to form a mixture of corner and edge-sharing SnSe6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Sn–Se bond lengths are 3.03 Å. Se2- is bonded to six equivalent Sn2+ atoms to form a mixture of corner and edge-sharing SeSn6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSe by Materials Project

SnSe crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two SnSe sheets oriented in the (0, 1, 0) direction. Sn2+ is bonded in a rectangular see-saw-like geometry to four equivalent Se2- atoms. There are two shorter (2.76 Å) and two longer (3.06 Å) Sn–Se bond lengths. Se2- is bonded in a rectangular see-saw-like geometry to four equivalent Sn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSe2 by Materials Project

SnSe2 is trigonal omega structured and crystallizes in the trigonal P-3m1 space group. The structure is two-dimensional and consists of one SnSe2 sheet oriented in the (0, 0, 1) direction. Sn4+ is bonded to six equivalent Se2- atoms to form edge-sharing SnSe6 octahedra. All Sn–Se bond lengths are 2.75 Å. Se2- is bonded in a distorted T-shaped geometry to three equivalent Sn4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSe by Materials Project

SnSe crystallizes in the orthorhombic Pnma space group. The structure is two-dimensional and consists of two SnSe sheets oriented in the (0, 0, 1) direction. Sn2+ is bonded in a 5-coordinate geometry to three equivalent Se2- atoms. There are one shorter (2.78 Å) and two longer (2.84 Å) Sn–Se bond lengths. Se2- is bonded in a 3-coordinate geometry to three equivalent Sn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSe by Materials Project

SnSe crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one SnSe sheet oriented in the (0, 0, 1) direction. Sn2+ is bonded to five equivalent Se2- atoms to form a mixture of edge and corner-sharing SnSe5 square pyramids. There are one shorter (2.72 Å) and four longer (3.06 Å) Sn–Se bond lengths. Se2- is bonded in a single-bond geometry to five equivalent Sn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSe by Materials Project

SnSe crystallizes in the orthorhombic Pmmn space group. The structure is one-dimensional and consists of two SnSe ribbons oriented in the (0, 1, 0) direction. Sn2+ is bonded in a T-shaped geometry to three equivalent Se2- atoms. There are one shorter (2.77 Å) and two longer (2.91 Å) Sn–Se bond lengths. Se2- is bonded in a 3-coordinate geometry to three equivalent Sn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSe by Materials Project

SnSe crystallizes in the orthorhombic Pnma space group. The structure is two-dimensional and consists of two SnSe sheets oriented in the (0, 0, 1) direction. Sn2+ is bonded to five equivalent Se2- atoms to form a mixture of corner and edge-sharing SnSe5 square pyramids. There are a spread of Sn–Se bond distances ranging from 2.74–3.05 Å. Se2- is bonded to five equivalent Sn2+ atoms to form a mixture of corner and edge-sharing SeSn5 square pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSe by Materials Project

SnSe crystallizes in the orthorhombic Cmcm space group. The structure is one-dimensional and consists of four SnSe ribbons oriented in the (1, 0, 0) direction. Sn2+ is bonded in a bent 120 degrees geometry to two equivalent Se2- atoms. There are one shorter (2.58 Å) and one longer (2.59 Å) Sn–Se bond lengths. Se2- is bonded in a linear geometry to two equivalent Sn2+ atoms.

36 MATERIALS SCIENCE↗