Self-assembly of a strapped linear porphyrin oligomer on HOPG
dc.contributor.author | Bellamy-Carter, Abigail | |
dc.contributor.author | Saywell, Alex | |
dc.contributor.other | Roche, Cécile | |
dc.contributor.other | Anderson, Harry L. | |
dc.date.accessioned | 2021-11-03T10:09:55Z | |
dc.date.available | 2021-11-03T10:09:55Z | |
dc.date.issued | 2021-11-03 | |
dc.identifier.uri | https://rdmc.nottingham.ac.uk/handle/internal/9174 | |
dc.description.abstract | Polymeric structures based on porphyrin units exhibit a range of complex properties, such as nanoscale charge transport and quantum interference effects, and have the potential to act as biomimetic materials for light-harvesting and catalysis. These functionalities are based upon the characteristics of the porphyrin monomers, but are also emergent properties of the extended polymer system. Incorporation of these properties within solid-state devices requires transfer of the polymers to a supporting substrate, and may require a high-degree of lateral order. Here we show that highly ordered self-assembled structures can be formed via a simple solution deposition protocol; for a strapped linear porphyrin oligomer adsorbed on a highly oriented pyrolytic graphite (HOPG) substrate. Two distinct molecule-molecule interactions are observed to drive the formation of two molecular phases (‘Interdigitated’ and ‘Bridge-stabilised’) characterised by scanning tunnelling microscopy, providing information on the unit cell dimensions and self-assembled structure. The concentration dependence of these phases is investigated, and we conclude that a bridge-stabilised phase is the thermodynamically stable structure at room temperature. | en_UK |
dc.language.iso | en | en_UK |
dc.publisher | The University of Nottingham | en_UK |
dc.rights | CC-BY | * |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
dc.subject.lcsh | Porphyrins | en_UK |
dc.subject.lcsh | Oligomers | en_UK |
dc.subject.lcsh | Scanning tunneling microscopy | en_UK |
dc.subject.lcsh | Self-assembly (Chemistry) | en_UK |
dc.title | Self-assembly of a strapped linear porphyrin oligomer on HOPG | en_UK |
dc.identifier.doi | http://doi.org/10.17639/nott.7148 | |
dc.subject.free | Scanning tunnelling microscopy (STM), Porphyrins, Self-assembly, structural models | en_UK |
dc.subject.jacs | Physical sciences::Chemistry::Physical chemistry | en_UK |
dc.subject.jacs | Physical sciences::Physics::Chemical physics, Solid-state physics | en_UK |
dc.subject.lc | Q Science::QD Chemistry::QD450 Physical and theoretical chemistry | en_UK |
uon.division | University of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomy | en_UK |
uon.funder.controlled | Engineering & Physical Sciences Research Council | en_UK |
uon.funder.controlled | Other | en_UK |
uon.datatype | Scanning tunnelling microscopy (STM) images | en_UK |
uon.funder.free | European Research Council | en_UK |
uon.funder.free | Royal Society | en_UK |
uon.grant | EP/J006939/1 | en_UK |
uon.grant | EP/M0166110/1 | en_UK |
uon.grant | 320969 (ERC) | en_UK |
uon.collectionmethod | STM images acquired using a Molecular Imaging (Agilent) PicoSTM | en_UK |
uon.preservation.rarelyaccessed | true | |
dc.relation.doi | https://doi.org/10.1038/s41598-021-99881-x | en_UK |
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