Shortest Fullerene-Peapod

Shortest Fullerene-Peapod

Author: ChemistryViews

Cycloparaphenylenes (CPPs) are hoop-shaped π-conjugated molecules in which paraphenylene units are linked in a cyclic manner. They represent the simplest structural unit of armchair carbon nanotubes.

Shigeru Yamago, Kyoto University, Japan, and colleagues, recently reported the first example of a host–guest complex of CPP and C60. Such host–guest complexes are suitable models for elucidating convex–concave π–π interactions.

Now they treated a mixture of CPPs with C60. [10]CPP selectively encapsulated C60 forming the shortest fullerene-peapod (see picture). Such complementary host–guest complexes could be useful for the size- and shapeselective separation of higher fullerenes and carbon nanotubes.


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