Materials Data on Ta4C3 by Materials Project
Ta4C3 crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. there are two inequivalent Ta3+ sites. In the first Ta3+ site, Ta3+ is bonded in a square co-planar geometry to four equivalent C4- atoms. All Ta–C bond lengths are 2.22 Å. In the second Ta3+ site, Ta3+ is bonded to six equivalent C4- atoms to form corner-sharing TaC6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ta–C bond lengths are 2.22 Å. C4- is bonded to six Ta3+ atoms to form a mixture of edge and corner-sharing CTa6 octahedra. The corner-sharing octahedral tilt angles are 0°.
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