Communication

Comparison of the Conductance of Three Types of Porphyrin-Based Molecular Wires: β,meso,β-Fused Tapes, meso-Butadiyne-Linked and Twisted meso-meso Linked Oligomers†

  1. Gita Sedghi1,
  2. Louisa J. Esdaile2,
  3. Harry L. Anderson2,*,
  4. Santiago Martin3,
  5. Donald Bethell1,
  6. Simon J. Higgins1,
  7. Richard J. Nichols1,*

Article first published online: 15 NOV 2011

DOI: 10.1002/adma.201103109

Issue

Advanced Materials

Advanced Materials

Special Issue: Functional Molecules for Electronics/Optoelectronics

Volume 24, Issue 5, pages 653–657, February 2, 2012

Additional Information

How to Cite

Sedghi, G., Esdaile, L. J., Anderson, H. L., Martin, S., Bethell, D., Higgins, S. J. and Nichols, R. J. (2012), Comparison of the Conductance of Three Types of Porphyrin-Based Molecular Wires: β,meso,β-Fused Tapes, meso-Butadiyne-Linked and Twisted meso-meso Linked Oligomers. Advanced Materials, 24: 653–657. doi: 10.1002/adma.201103109

Author Information

  1. 1

    Chemistry Department, University of Liverpool, Liverpool L69 7ZD, UK

  2. 2

    Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK

  3. 3

    Departamento de Química Física e Instituto de Nanociencia de Aragon (INA), Universidad de Zaragoza, 50009, Spain

*Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK

  1. †

    Dedicated to Klaus Müllen on the occasion of his 65th birthday

Publication History

  1. Issue published online: 26 JAN 2012
  2. Article first published online: 15 NOV 2011
  3. Manuscript Revised: 15 OCT 2011
  4. Manuscript Received: 12 AUG 2011

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Keywords:

  • single molecules;
  • conductance;
  • porphyrin;
  • oligomers;
  • conjugated

Graphical Abstract

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The length dependence of charge transport is evaluated in three families of porphyrin-based wires. Planar edge-fused tapes and alkyne-linked oligomers mediate efficient charge transport with exceptionally shallow distance dependence, whereas the conductances of the twisted singly linked chains decrease steeply with increasing oligomer length. The planar tapes are more conjugated than the alkyne-linked oligomers, but these two types of wires have similar conductance attenuation factors.

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