Materials Data on V(CrC)2 by Materials Project
VCr2C2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. V2+ is bonded to four C4- atoms to form corner-sharing VC4 tetrahedra. There is two shorter (1.98 Å) and two longer (2.01 Å) V–C bond length. Cr3+ is bonded in a 5-coordinate geometry to five C4- atoms. There are a spread of Cr–C bond distances ranging from 1.99–2.50 Å. There are two inequivalent C4- sites. In the first C4- site, C4- is bonded in a 6-coordinate geometry to two equivalent V2+ and six equivalent Cr3+ atoms. In the second C4- site, C4- is bonded to two equivalent V2+ and four equivalent Cr3+ atoms to form a mixture of corner and edge-sharing CV2Cr4 octahedra. The corner-sharing octahedral tilt angles are 53°.
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