Materials Data on Ta2VC2 by Materials Project
Ta2VC2 crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of three Ta2VC2 sheets oriented in the (0, 0, 1) direction. Ta3+ is bonded in a distorted T-shaped geometry to three equivalent C4- atoms. All Ta–C bond lengths are 2.15 Å. V2+ is bonded to six equivalent C4- atoms to form edge-sharing VC6 octahedra. All V–C bond lengths are 2.15 Å. C4- is bonded to three equivalent Ta3+ and three equivalent V2+ atoms to form a mixture of edge and corner-sharing CTa3V3 octahedra. The corner-sharing octahedral tilt angles are 0°.
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