Shortest Double-Walled Carbon Nanotubes Composed of Cycloparaphenylenes

Abstract

Invited for this month's cover is the group of Prof. Dr. Shigeru Yamago at the Kyoto University (Japan). The image shows the host–guest possibilities of cycloparaphenylenes (CPPs) of different sizes. Size selective interaction between [n]CPP and [n+5]CPP affords a host–guest complex, [n+5]CPP⊃[n]CPP, which is the shortest double-walled armchair carbon nanotube. The size-selective complex formation illustrates the importance of van der Waals interactions. A ternary complex, [15]CPP⊃[10]CPP⊃C60, also forms from [15]CPP, [10]CPP, and C60. Read the full text of the article at 10.1002/cplu.201700097.