Cover Feature: Isolation and Crystallographic Characterization of Two, Nonisolated Pentagon Endohedral Fullerenes: Ho 3 N@ C 2 (22010)‐C 78 and Tb 3 N@ C 2 (22010)‐C 78 (Chem. Eur. J. 54/2019)

The molecular structure of Ho3N@C2(22010)-C78 is shown in the cover artwork, along with the two molecules of nickel octaethylporphyrin (Ni(OEP) that surround it in the co-crystal, Ho3N@C2(22010)-C78⋅2 Ni(OEP)⋅2 toluene. Ho3N@C2(22010)-C78 contains a planar Ho3N unit surrounded by a chiral carbon cage. That cage violates the isolated pentagon rule by having two sites where two pentagons share a common edge. Color code: nitrogen, blue; holmium, orange; nickel, green; carbon, gray. More information can be found in the Full Paper by S. Stevenson, H. C. Dorn, M. M. Olmstead, A. L. Balch, et al. on page 12545.