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Materials Data on NbVCN by Materials Project

NbVCN is alpha Po-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Nb5+ is bonded to four equivalent C4- and two equivalent N3- atoms to form NbC4N2 octahedra that share corners with six equivalent NbC4N2 octahedra, edges with four equivalent NbC4N2 octahedra, and edges with eight equivalent VC2N4 octahedra. The corner-sharing octahedral tilt angles are 0°. All Nb–C bond lengths are 2.18 Å. Both Nb–N bond lengths are 2.15 Å. V2+ is bonded to two equivalent C4- and four equivalent N3- atoms to form VC2N4 octahedra that share corners with six equivalent VC2N4 octahedra, edges with four equivalent VC2N4 octahedra, and edges with eight equivalent NbC4N2 octahedra. The corner-sharing octahedral tilt angles are 0°. Both V–C bond lengths are 2.15 Å. All V–N bond lengths are 2.18 Å. C4- is bonded to four equivalent Nb5+ and two equivalent V2+ atoms to form CNb4V2 octahedra that share corners with six equivalent CNb4V2 octahedra, edges with four equivalent CNb4V2 octahedra, and edges with eight equivalent NNb2V4 octahedra. The corner-sharing octahedral tilt angles are 0°. N3- is bonded to two equivalent Nb5+ and four equivalent V2+ atoms to form NNb2V4 octahedra that share corners with six equivalent NNb2V4 octahedra, edges with four equivalent NNb2V4 octahedra, and edges with eight equivalent CNb4V2 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗

Materials Data on NbVCN by Materials Project

NbVCN is alpha Po-derived structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. Nb5+ is bonded to three equivalent C4- and three equivalent N3- atoms to form NbC3N3 octahedra that share corners with six equivalent VC3N3 octahedra, edges with six equivalent NbC3N3 octahedra, and edges with six equivalent VC3N3 octahedra. The corner-sharing octahedra tilt angles range from 1–6°. All Nb–C bond lengths are 2.19 Å. All Nb–N bond lengths are 2.23 Å. V2+ is bonded to three equivalent C4- and three equivalent N3- atoms to form VC3N3 octahedra that share corners with six equivalent NbC3N3 octahedra, edges with six equivalent NbC3N3 octahedra, and edges with six equivalent VC3N3 octahedra. The corner-sharing octahedra tilt angles range from 1–6°. All V–C bond lengths are 2.04 Å. All V–N bond lengths are 2.22 Å. C4- is bonded to three equivalent Nb5+ and three equivalent V2+ atoms to form CNb3V3 octahedra that share corners with six equivalent NNb3V3 octahedra, edges with six equivalent CNb3V3 octahedra, and edges with six equivalent NNb3V3 octahedra. The corner-sharing octahedra tilt angles range from 1–7°. N3- is bonded to three equivalent Nb5+ and three equivalent V2+ atoms to form NNb3V3 octahedra that share corners with six equivalent CNb3V3 octahedra, edges with six equivalent CNb3V3 octahedra, and edges with six equivalent NNb3V3 octahedra. The corner-sharing octahedra tilt angles range from 1–7°.

36 MATERIALS SCIENCE↗