Chemistry

Fullerene Peas in Porphyrin Pods

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Science  21 Nov 2003:
Vol. 302, Issue 5649, pp. 1297
DOI: 10.1126/science.302.5649.1297a

The host-guest structures formed by carbon nanotubes containing fullerene molecules have unusual transport and electronic properties, but the production of these assemblies is difficult to control. Yamaguchi et al. have produced an organic supramolecular structure in which fullerenes are held by a claw created by two linked porphyrin groups that are attached to small dendrimers. These units then assemble further into nanotubes via the hydrogen bonding of carboxylic acid groups attached to the porphyrins. The nanotubes are thermally stable and form as discrete unentangled entities. — PDS

J. Am. Chem. Soc. 10.1021/ja038178j.

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