Molecular quantum ring formed from a pi-conjugated macrocycle
Publication Date
October 14, 2020
Creators
Description
The electronic structure of a molecular quantum ring (stacks of 40-unit cyclic porphyrin polymers) is characterised via scanning tunnelling microscopy and scanning tunnelling spectroscopy. Our measurements access the energetic and spatial distribution of the electronic states and, utilising a combination of density functional theory and tight binding calculations, we interpret the experimentally obtained electronic structure in terms of coherent quantum states confined around the circumference of the π-conjugated macrocycle. These findings demonstrate that large (53 nm circumference) cyclic porphyrin polymers have the potential to act as molecular quantum rings.
Collection dates:
04/08/2017 - 29/08/2017
Subjects
Subjects (JACS)
Subjects (LC)
Divisions
University of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomy
University of Nottingham, UK Campus::Faculty of Science::School of Chemistry
Data type
Scanning tunnelling microscopy images (STM)
Funders
Leverhulme Trust
Royal Society Wolfson Fellowship
People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme
Royal Society University Research Fellowship
ERC
Grant Number
RPG-2016-104
623992-TOPCHEM
EP/P020232/1
EP/J007161/1
320969
Data collection method
Scanning Tunelling Microscopy (STM): Omicron LT STM/AFM system, Omicron STM-1
Resource languages
English
Publisher
The University of Nottingham
Date Issued
October 14, 2020
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Name
Molecular Quantum Ring Data.zip
Size
239.92 MB
Format
Unknown
Checksum (MD5)
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