Issue 47, 2021

Surface-confined formation of conjugated porphyrin-based nanostructures on Ag(111)

Abstract

Porphyrin-based oligomers were synthesized from the condensation of adsorbed 4-benzaldehyde-substituted porphyrins through the formation of C[double bond, length as m-dash]C linkages, following a McMurry-type coupling scheme. Scanning tunneling microscopy, non-contact atomic force microscopy, and X-ray photoelectron spectroscopy data evidence both the dissociation of aldehyde groups and the formation of C[double bond, length as m-dash]C linkages. Our approach provides a path for the on-surface synthesis of porphyrin-based oligomers coupled by C[double bond, length as m-dash]C bridges – as a means to create functional conjugated nanostructures.

Graphical abstract: Surface-confined formation of conjugated porphyrin-based nanostructures on Ag(111)

Supplementary files

Article information

Article type
Communication
Submitted
30 Sep 2021
Accepted
21 Nov 2021
First published
25 Nov 2021

Nanoscale, 2021,13, 19884-19889

Surface-confined formation of conjugated porphyrin-based nanostructures on Ag(111)

N. Cao, A. Riss, E. Corral-Rascon, A. Meindl, W. Auwärter, M. O. Senge, M. Ebrahimi and J. V. Barth, Nanoscale, 2021, 13, 19884 DOI: 10.1039/D1NR06451G

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