Journal article
A Molecular Nanotube with Three-Dimensional π-Conjugation.
- Abstract:
- A π-conjugated twelve-porphyrin tube is synthesized in 32% yield by a template-directed coupling reaction that joins together six porphyrin dimers, forming twelve new C-C bonds. The nanotube has two bound templates, enclosing an internal volume of approximately 4.5 nm(3). Its UV/Vis/NIR absorption and fluorescence spectra resemble those of a previously reported six-porphyrin ring, but are red-shifted by approximately 300 cm(-1), reflecting increased conjugation. Ultrafast fluorescence spectroscopy demonstrates extensive excited-state delocalization. Transfer of electronic excitation from an initially formed state polarized in the direction of the nanotube axis (z axis) to an excited state polarized in the xy plane occurs within 200 fs, resulting in a negative fluorescence anisotropy on excitation at 742 nm.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 2.3MB, Terms of use)
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- Publisher copy:
- 10.1002/anie.201502735
Authors
+ Alexander von Humboldt Foundation
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- Funding agency for:
- Neuhaus, P
- Grant:
- PIEF-GA-2011-301336
+ Marie Curie Individual Fellowship
More from this funder
- Funding agency for:
- Neuhaus, P
- Grant:
- PIEF-GA-2011-301336
- Publisher:
- Wiley
- Journal:
- Angewandte Chemie (International ed. in English) More from this journal
- Volume:
- 54
- Issue:
- 25
- Pages:
- 7344-7348
- Publication date:
- 2015-05-07
- DOI:
- EISSN:
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1521-3773
- ISSN:
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1433-7851
- Language:
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English
- Keywords:
- Pubs id:
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pubs:523285
- UUID:
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uuid:cbaba7d1-4dba-4f7e-ae7a-6569f66bc62d
- Local pid:
-
pubs:523285
- Source identifiers:
-
523285
- Deposit date:
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2016-01-05
Terms of use
- Copyright holder:
- Neuhaus et al
- Copyright date:
- 2015
- Notes:
-
© 2015 The Authors. Published by Wiley-VCH Verlag GmbH and Co.
KGaA. This is an open access article under the terms of the Creative Commons Attribution License. This is the publisher's version of the article. The final version is available online from Wiley-VCH Verlag at: [10.1002/anie.201502735]
- Licence:
- CC Attribution (CC BY)
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