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Mechanical stiffening of porphyrin nanorings through supramolecular columnar stacking

Svatek, Simon A.; Perdigão, Luis M.A.; Stannard, Andrew; Wieland, Maria B.; Kondratuk, Dmitry V.; Anderson, Harry L.; O'Shea, James N.; Beton, Peter H.

Authors

Simon A. Svatek

Luis M.A. Perdigão

Andrew Stannard

Maria B. Wieland

Dmitry V. Kondratuk

Harry L. Anderson

James N. O'Shea

Peter H. Beton



Abstract

Solvent-induced aggregates of nanoring cyclic polymers may be transferred by electrospray deposition to a surface where they adsorb as threedimensional columnar stacks. The observed stack height varies from single rings to four stacked rings with a layer spacing of 0.32 ± 0.04 nm as measured using scanning tunneling microscopy. The flexibility of the nanorings results in distortions from a circular shape, and we show, through a comparison with
Monte Carlo simulations, that the bending stiffness increases linearly with the stack height. Our results show that noncovalent interactions may be used to control the shape and mechanical properties of artificial macromolecular
aggregates offering a new route to solvent-induced control of two-dimensional supramolecular organization.

Journal Article Type Article
Publication Date Jan 1, 2013
Journal Nano Letters
Print ISSN 1530-6984
Electronic ISSN 1530-6984
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 13
Issue 7
APA6 Citation Svatek, S. A., Perdigão, L. M., Stannard, A., Wieland, M. B., Kondratuk, D. V., Anderson, H. L., …Beton, P. H. (2013). Mechanical stiffening of porphyrin nanorings through supramolecular columnar stacking. Nano Letters, 13(7), doi:10.1021/nl4017557
DOI https://doi.org/10.1021/nl4017557
Publisher URL http://pubs.acs.org/doi/abs/10.1021/nl4017557
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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