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Materials Data on Sc4C3 by Materials Project

Sc4C3 crystallizes in the cubic I-43d space group. The structure is three-dimensional. Sc3+ is bonded in a 6-coordinate geometry to six equivalent C4- atoms. There are three shorter (2.26 Å) and three longer (2.79 Å) Sc–C bond lengths. C4- is bonded in a 4-coordinate geometry to eight equivalent Sc3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sc2C3 by Materials Project

Sc2C3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. The structure is three-dimensional. Sc2+ is bonded in a 6-coordinate geometry to nine equivalent C+1.33- atoms. There are a spread of Sc–C bond distances ranging from 2.34–2.65 Å. C+1.33- is bonded to six equivalent Sc2+ and one C+1.33- atom to form a mixture of distorted corner, edge, and face-sharing CSc6C trigonal bipyramids. The C–C bond length is 1.34 Å.

36 MATERIALS SCIENCE↗

Materials Data on Sc2C by Materials Project

Sc2C is trigonal omega structured and crystallizes in the trigonal P-3m1 space group. The structure is two-dimensional and consists of one Sc2C sheet oriented in the (0, 0, 1) direction. Sc2+ is bonded in a distorted T-shaped geometry to three equivalent C4- atoms. All Sc–C bond lengths are 2.28 Å. C4- is bonded to six equivalent Sc2+ atoms to form edge-sharing CSc6 octahedra.

36 MATERIALS SCIENCE↗

Materials Data on ScC by Materials Project

ScC is Molybdenum Carbide MAX Phase-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sc3+ is bonded to six equivalent C3- atoms to form a mixture of face, edge, and corner-sharing ScC6 octahedra. The corner-sharing octahedral tilt angles are 46°. All Sc–C bond lengths are 2.38 Å. C3- is bonded to six equivalent Sc3+ atoms to form a mixture of distorted edge and corner-sharing CSc6 pentagonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on ScC by Materials Project

ScC crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sc3+ is bonded to five equivalent C3- atoms to form a mixture of edge and corner-sharing ScC5 trigonal bipyramids. All Sc–C bond lengths are 2.29 Å. C3- is bonded to five equivalent Sc3+ atoms to form a mixture of edge and corner-sharing CSc5 trigonal bipyramids.

36 MATERIALS SCIENCE↗

Materials Data on ScC by Materials Project

ScC is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sc3+ is bonded in a body-centered cubic geometry to eight equivalent C3- atoms. All Sc–C bond lengths are 2.49 Å. C3- is bonded in a body-centered cubic geometry to eight equivalent Sc3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on ScC by Materials Project

ScC is Zincblende, Sphalerite structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Sc3+ is bonded to four equivalent C3- atoms to form corner-sharing ScC4 tetrahedra. All Sc–C bond lengths are 2.21 Å. C3- is bonded to four equivalent Sc3+ atoms to form corner-sharing CSc4 tetrahedra.

36 MATERIALS SCIENCE↗