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Supramolecular Peapods Composed of a Metalloporphyrin Nanotube and Fullerenes
Yamaguchi, Tatsuya,Ishii, Noriyuki,Tashiro, Kentaro,Aida, Takuzo
, p. 13934 - 13935 (2003)
An acyclic dimer of a dendritic zinc porphyrin bearing six carboxylic acid functionalities (1acid) interacts with fullerenes, such as C60 and C70, to form supramolecular peapods , composed of a hydrogen-bonded zinc porphyrin nanotube and fullerenes (3). According to TEM, the peapods are very long (>1 μm) and have a uniform diameter of 15 nm. Without fullerenes, the zinc porphyrin dimer forms only a heavily entangled, irregular assembly. In contrast with 1acid, an ester version of the acyclic dimer without hydrogen-bonding capability (1ester) hardly interacts with fullerenes. Copyright