Fig. 1. (a) NdSc2N@C80·NiOEP fragment from the NdSc2N@C80·NiOEP·2C6H6 single crystal. (b) NdSc2N cluster and fullerene carbons nearest to endohedral metals; Nd–C distances in the Nd-(η6-C6) fragment are 2.527(2)–2.604(2) Å. Color code: Nd – cyan, Sc – magenta, N – blue, C – gray, and Ni – red. (c) and (d) Histograms of Nd–N (c) and Nd–C (d) bond lengths in molecular compounds deposited in the CCDC database. Insets show expansion of the ranges with the shortest bonds, and the pink line in (c) and the rectangle in (d) denote Nd–N and Nd–C bond lengths in NdSc2N@C80.
