Supramolecular nesting of cyclic polymers
Advances in template-directed synthesis make it possible to create artificial molecules with protein-like dimensions, directly from simple components. These synthetic macromolecules have a proclivity for self-organization that is reminiscent of biopolymers. Here, we report the synthesis of monodispe...
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| Format: | Article |
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Nature Publishing Group
2015
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| Online Access: | https://eprints.nottingham.ac.uk/34933/ |
| _version_ | 1848794964770684928 |
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| author | Kondratuk, Dmitry V. Perdigão, Luis M.A. Esmail, Ayad M.S. O'Shea, James N. Beton, Peter H. Anderson, Harry L. |
| author_facet | Kondratuk, Dmitry V. Perdigão, Luis M.A. Esmail, Ayad M.S. O'Shea, James N. Beton, Peter H. Anderson, Harry L. |
| author_sort | Kondratuk, Dmitry V. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Advances in template-directed synthesis make it possible to create artificial molecules with protein-like dimensions, directly from simple components. These synthetic macromolecules have a proclivity for self-organization that is reminiscent of biopolymers. Here, we report the synthesis of monodisperse cyclic porphyrin polymers, with diameters of up to 21 nm (750 C–C bonds). The ratio of the intrinsic viscosities for cyclic and linear topologies is 0.72, indicating that these polymers behave as almost ideal flexible chains in solution. When deposited on gold surfaces, the cyclic polymers display a new mode of two-dimensional supramolecular organization, combining encapsulation and nesting; one nanoring adopts a near-circular conformation, thus allowing a second nanoring to be captured within its perimeter, in a tightly folded conformation. Scanning tunnelling microscopy reveals that nesting occurs in combination with stacking when nanorings are deposited under vacuum, whereas when they are deposited directly from solution under ambient conditions there is stacking or nesting, but not a combination of both. |
| first_indexed | 2025-11-14T19:24:34Z |
| format | Article |
| id | nottingham-34933 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:24:34Z |
| publishDate | 2015 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-349332020-05-04T17:02:38Z https://eprints.nottingham.ac.uk/34933/ Supramolecular nesting of cyclic polymers Kondratuk, Dmitry V. Perdigão, Luis M.A. Esmail, Ayad M.S. O'Shea, James N. Beton, Peter H. Anderson, Harry L. Advances in template-directed synthesis make it possible to create artificial molecules with protein-like dimensions, directly from simple components. These synthetic macromolecules have a proclivity for self-organization that is reminiscent of biopolymers. Here, we report the synthesis of monodisperse cyclic porphyrin polymers, with diameters of up to 21 nm (750 C–C bonds). The ratio of the intrinsic viscosities for cyclic and linear topologies is 0.72, indicating that these polymers behave as almost ideal flexible chains in solution. When deposited on gold surfaces, the cyclic polymers display a new mode of two-dimensional supramolecular organization, combining encapsulation and nesting; one nanoring adopts a near-circular conformation, thus allowing a second nanoring to be captured within its perimeter, in a tightly folded conformation. Scanning tunnelling microscopy reveals that nesting occurs in combination with stacking when nanorings are deposited under vacuum, whereas when they are deposited directly from solution under ambient conditions there is stacking or nesting, but not a combination of both. Nature Publishing Group 2015-02-16 Article PeerReviewed Kondratuk, Dmitry V., Perdigão, Luis M.A., Esmail, Ayad M.S., O'Shea, James N., Beton, Peter H. and Anderson, Harry L. (2015) Supramolecular nesting of cyclic polymers. Nature Chemistry, 7 (4). pp. 317-322. ISSN 1755-4349 Molecular self-assembly Scanning probe microscopy Self-assembly Surface assembly http://www.nature.com/nchem/journal/v7/n4/full/nchem.2182.html doi:10.1038/nchem.2182 doi:10.1038/nchem.2182 |
| spellingShingle | Molecular self-assembly Scanning probe microscopy Self-assembly Surface assembly Kondratuk, Dmitry V. Perdigão, Luis M.A. Esmail, Ayad M.S. O'Shea, James N. Beton, Peter H. Anderson, Harry L. Supramolecular nesting of cyclic polymers |
| title | Supramolecular nesting of cyclic polymers |
| title_full | Supramolecular nesting of cyclic polymers |
| title_fullStr | Supramolecular nesting of cyclic polymers |
| title_full_unstemmed | Supramolecular nesting of cyclic polymers |
| title_short | Supramolecular nesting of cyclic polymers |
| title_sort | supramolecular nesting of cyclic polymers |
| topic | Molecular self-assembly Scanning probe microscopy Self-assembly Surface assembly |
| url | https://eprints.nottingham.ac.uk/34933/ https://eprints.nottingham.ac.uk/34933/ https://eprints.nottingham.ac.uk/34933/ |