Outputs (26)

Porphyrin-fused graphene nanoribbons (2024)
Journal Article
Chen, Q., Lodi, A., Zhang, H., Gee, A., Wang, H. I., Kong, F., …Anderson, H. L. (2024). Porphyrin-fused graphene nanoribbons. Nature Chemistry, https://doi.org/10.1038/s41557-024-01477-1

Graphene nanoribbons (GNRs), nanometre-wide strips of graphene, are promising materials for fabricating electronic devices. Many GNRs have been reported, yet no scalable strategies are known for synthesizing GNRs with metal atoms and heteroaromatic u... Read More about Porphyrin-fused graphene nanoribbons.

Template‐Directed Synthesis of Strained meso‐meso‐Linked Porphyrin Nanorings (2024)
Journal Article
Van Raden, J. M., Deng, J., Gotfredsen, H., Hergenhahn, J., Clarke, M., Edmondson, M., …Anderson, H. L. (2024). Template‐Directed Synthesis of Strained meso‐meso‐Linked Porphyrin Nanorings. Angewandte Chemie International Edition, Article e202400103. https://doi.org/10.1002/anie.202400103

Strained macrocycles display interesting properties, such as conformational rigidity, often resulting in enhance π‐conjugation or enhanced affinity for non‐covalent guest binding, yet they can be difficult to synthesize. Here we use computational mod... Read More about Template‐Directed Synthesis of Strained meso‐meso‐Linked Porphyrin Nanorings.

Self-metalation of tetraphenyl porphyrin on Au(111): Structural characterisation via X-ray standing wave analysis (2023)
Journal Article
Frampton, E. S., Edmondson, M., Judd, C. J., Duncan, D. A., Jones, R. G., & Saywell, A. (2023). Self-metalation of tetraphenyl porphyrin on Au(111): Structural characterisation via X-ray standing wave analysis. Inorganica Chimica Acta, 558, Article 121718. https://doi.org/10.1016/j.ica.2023.121718

The study of surface-confined reactions provides a route towards characterising the mechanistic processes which underpin heterogeneous catalysis. On-surface reactions provide alternative pathways to solution phase synthesis, and can be studied by a r... Read More about Self-metalation of tetraphenyl porphyrin on Au(111): Structural characterisation via X-ray standing wave analysis.

Adsorption structure of iron phthalocyanine and titanyl phthalocyanine on Cu(1 1 1) (2023)
Journal Article
Stoodley, M. A., Klein, B. P., Clarke, M., Williams, L. B., Rochford, L. A., Ferrer, P., …Duncan, D. A. (2023). Adsorption structure of iron phthalocyanine and titanyl phthalocyanine on Cu(1 1 1). Inorganica Chimica Acta, 557, Article 121679. https://doi.org/10.1016/j.ica.2023.121679

The adsorption structure of iron phthalocyanine (FePc) and titanyl phthalocyanine (TiOPc) was studied by a combination of near edge X-ray absorption fine structure (NEXAFS) spectroscopy and normal incidence X-ray standing waves (NIXSW) technique. The... Read More about Adsorption structure of iron phthalocyanine and titanyl phthalocyanine on Cu(1 1 1).

On-surface polymerisation and self-assembly of DPP-based molecular wires (2023)
Journal Article
Clarke, M., Bellamy-Carter, A., Malagreca, F., Hart, J., Argent, S. P., O'Shea, J. N., …Saywell, A. (2023). On-surface polymerisation and self-assembly of DPP-based molecular wires. Molecular Systems Design and Engineering, https://doi.org/10.1039/d2me00232a

The incorporation of organic semiconducting materials within solid-state electronic devices provides a potential route to highly efficient photovoltaics, transistors, and light emitting diodes. Key to the realisation of such devices is efficient intr... Read More about On-surface polymerisation and self-assembly of DPP-based molecular wires.

Using polycyclic aromatic hydrocarbons for graphene growth on Cu(111) under ultra-high vacuum (2022)
Journal Article
Klein, B. P., Stoodley, M. A., Edmondson, M., Rochford, L. A., Walker, M., Sattler, L., …Duncan, D. A. (2022). Using polycyclic aromatic hydrocarbons for graphene growth on Cu(111) under ultra-high vacuum. Applied Physics Letters, 121(19), Article 191603. https://doi.org/10.1063/5.0122914

Ultra-high vacuum deposition of the polycyclic aromatic hydrocarbons azupyrene and pyrene onto a Cu(111) surface held at a temperature of 1000 K is herein shown to result in the formation of graphene. The presence of graphene was proven using scannin... Read More about Using polycyclic aromatic hydrocarbons for graphene growth on Cu(111) under ultra-high vacuum.

Bending a photonic wire into a ring (2022)
Journal Article
Gotfredsen, H., Deng, J. R., Van Raden, J. M., Righetto, M., Hergenhahn, J., Clarke, M., …Anderson, H. L. (2022). Bending a photonic wire into a ring. Nature Chemistry, https://doi.org/10.1038/s41557-022-01032-w

Natural light-harvesting systems absorb sunlight and transfer its energy to the reaction centre, where it is used for photosynthesis. Synthetic chromophore arrays provide useful models for understanding energy migration in these systems. Research has... Read More about Bending a photonic wire into a ring.

Molecular Diffusion and Self-Assembly: Quantifying the Influence of Substrate hcp and fcc Atomic Stacking (2022)
Journal Article
Edmondson, M., & Saywell, A. (2022). Molecular Diffusion and Self-Assembly: Quantifying the Influence of Substrate hcp and fcc Atomic Stacking. Nano Letters, 22(20), 8210-8215. https://doi.org/10.1021/acs.nanolett.2c02895

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 topography and diffusion link... Read More about Molecular Diffusion and Self-Assembly: Quantifying the Influence of Substrate hcp and fcc Atomic Stacking.

Order, disorder, and metalation of tetraphenylporphyrin (2H-TPP) on Au(111) (2022)
Journal Article
Edmondson, M., Frampton, E. S., Judd, C. J., Champness, N. R., Jones, R. G., & Saywell, A. (2022). Order, disorder, and metalation of tetraphenylporphyrin (2H-TPP) on Au(111). Chemical Communications, 58(42), 6247–6250. https://doi.org/10.1039/d2cc00820c

A thermally induced order–disorder transition of tetraphenylporphyrin (2H-TPP) on Au(111) is characterised by scanning probe microscopy and X-ray photoelectron spectroscopy-based techniques. We observed that a transition from an ordered close-packed... Read More about Order, disorder, and metalation of tetraphenylporphyrin (2H-TPP) on Au(111).

Self-assembly of a strapped linear porphyrin oligomer on HOPG (2021)
Journal Article
Bellamy-Carter, A., Roche, C., Anderson, H. L., & Saywell, A. (2021). Self-assembly of a strapped linear porphyrin oligomer on HOPG. Scientific Reports, 11, Article 20388

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... Read More about Self-assembly of a strapped linear porphyrin oligomer on HOPG.