Skip to main content

Research Repository

Advanced Search

Ordering, Flexibility and Frustration in Arrays of Porphyrin Nanorings

Summerfield, Alex; Baldoni, Matteo; Kondratuk, Dmitry V; Anderson, Harry L; Whitelam, Stephen; Garrahan, Juan P; Besley, Elena; Beton, Peter H


Alex Summerfield

Matteo Baldoni

Dmitry V Kondratuk

Harry L Anderson

Stephen Whitelam


The regular packing of atoms, molecules and nanoparticles provides the basis for the understanding of structural order within condensed phases of matter. Typically the constituent particles are considered to be rigid with a fixed shape. Here we show, through a combined experimental and numerical study of the adsorption of cyclic porphyrin polymers, nanorings, on a graphite surface, that flexible molecules can exhibit a rich and complex packing behaviour. Depending on the number of porphyrin sub-units within the nanoring we observe either a highly ordered hexagonal phase or frustrated packing driven by directional interactions which for some arrangements is combined with the internal deformation of the cyclic polymer. Frustration and deformation occur in arrays of polymers with ten sub-units since close packing and co-alignment of neighbouring groups cannot be simultaneously realised for nanorings with this internal symmetry. * 2


Summerfield, A., Baldoni, M., Kondratuk, D. V., Anderson, H. L., Whitelam, S., Garrahan, J. P., …Beton, P. H. (2019). Ordering, Flexibility and Frustration in Arrays of Porphyrin Nanorings. Nature Communications, 10, Article 2932.

Journal Article Type Article
Acceptance Date May 13, 2019
Online Publication Date Jul 3, 2019
Publication Date Jul 3, 2019
Deposit Date Jun 11, 2019
Publicly Available Date Jul 3, 2019
Journal Nature Communications
Electronic ISSN 2041-1723
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 10
Article Number 2932
Keywords General Biochemistry, Genetics and Molecular Biology; General Physics and Astronomy; General Chemistry
Public URL
Publisher URL
Additional Information Received: 21 February 2019; Accepted: 13 June 2019; First Online: 3 July 2019; : The authors declare no competing interests.


You might also like

Downloadable Citations