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Sapphyrin-nanotube assemblies.

ABSTRACT: Single wall carbon nanotubes (SWNTs) bind strongly to sapphyrins, quintessential pentapyrrolic "expanded porphyrin" macrocycles, through donor-acceptor stacking interactions. The specific use of a functionalized sapphyrin diol yields stable water-suspendable nanotubes and also permits the formation of well-defined assemblies in ionic liquids. The absorption and steady-state fluorescence spectra of the resulting noncovalently functionalized nanotube complexes have been analyzed in aqueous media and ionic liquids, yielding a description of the photophysical properties of the nanotube-sapphyrin complexes as donor-acceptor species for light-harvesting.

SUBMITTER: Boul PJ

PROVIDER: S-EPMC2526119 | biostudies-literature | 2007 May

REPOSITORIES: biostudies-literature

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Sapphyrin-nanotube assemblies.

Boul Peter J PJ Cho Dong-Gyu DG Rahman G M Aminur GM Marquez Manuel M Ou Zhongping Z Kadish Karl M KM Guldi Dirk M DM Sessler Jonathan L JL

Journal of the American Chemical Society 20070410 17

Single wall carbon nanotubes (SWNTs) bind strongly to sapphyrins, quintessential pentapyrrolic "expanded porphyrin" macrocycles, through donor-acceptor stacking interactions. The specific use of a functionalized sapphyrin diol yields stable water-suspendable nanotubes and also permits the formation of well-defined assemblies in ionic liquids. The absorption and steady-state fluorescence spectra of the resulting noncovalently functionalized nanotube complexes have been analyzed in aqueous media a ...[more]

PMID: 17419632

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