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Molecular quantum ring formed from a pi-conjugated macrocycle
(The University of Nottingham, 2020-10-14)
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 ...
Structural characterisation of molecular conformation and the incorporation of adatoms in an on-surface Ullmann-type reaction
(The University of Nottingham, 2020-11-03)
The on-surface synthesis of covalently bonded materials differs from solution-phase synthesis in several respects. The transition from a three-dimensional reaction volume to quasi two-dimensional confinement, as is the ...
Self-assembly of a strapped linear porphyrin oligomer on HOPG
(The University of Nottingham, 2021-11-03)
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 ...
Molecular diffusion and self-assembly: Quantifying the influence of substrate hcp and fcc atomic stacking
(The University of Nottingham, 2022-10-14)
Molecular diffusion is a fundamental process underpinning surface-confined molecular self-assembly and synthesis. Substrate topography influences molecular assembly, alignment, and reactions; with the relationship between ...