Communication

Enhanced π Conjugation around a Porphyrin[6] Nanoring†

  1. Markus Hoffmann1,
  2. Joakim Kärnbratt3,
  3. Ming-Hua Chang2,
  4. Laura M. Herz Dr.2,
  5. Bo Albinsson Prof.3,
  6. Harry L. Anderson Prof.1

Article first published online: 28 MAY 2008

DOI: 10.1002/anie.200801188

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 47, Issue 27, pages 4993–4996, June 23, 2008

Additional Information

How to Cite

Hoffmann, M., Kärnbratt, J., Chang, M.-H., Herz, Laura M., Albinsson, B. and Anderson, Harry L. (2008), Enhanced π Conjugation around a Porphyrin[6] Nanoring. Angew. Chem. Int. Ed., 47: 4993–4996. doi: 10.1002/anie.200801188

Author Information

  1. 1

    Department of Chemistry, Oxford University, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA (UK), Fax: (+44) 1865-28-5002 http://users.ox.ac.uk/∼hlagroup

  2. 2

    Department of Physics, Oxford University

  3. 3

    Department of Chemical and Biological Engineering, Physical and Organic Chemistry, Chalmers University of Technology, Kemivägen 10, 412 96 Göteborg (Sweden)

  1. †

    This work was supported by EPSRC. We thank Johannes K. Sprafke for preliminary experiments on the synthesis of the template, and the EPSRC Mass Spectrometry Service (Swansea) for mass spectra.

Publication History

  1. Issue published online: 16 JUN 2008
  2. Article first published online: 28 MAY 2008
  3. Manuscript Revised: 26 APR 2008
  4. Manuscript Received: 12 MAR 2008

Funded by

  • EPSRC

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Keywords:

  • conjugation;
  • molecular electronics;
  • porphyrinoids;
  • self-assembly;
  • template synthesis
Thumbnail image of graphical abstract

Strong cycle: The cyclic hexamer–template complex 3 obtained through template-directed trimerization of a porphyrin dimer 2, using a hexapyridyl template 1, is extremely stable (Kf=7×1038 M−1), but the free macrocycle 4 can be liberated using amine ligands. Spectroscopic data and DFT calculations show that the cyclic hexamer is more conjugated than its linear analogue.

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