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Chemical shielding of H2O and HF encapsulated inside a C60 cage (2021)
Journal Article
Jarvis, S. P., Sang, H., Junqueira, F., Gordon, O., Hodgkinson, J. E. A., Saywell, A., …Jones, R. G. (2021). Chemical shielding of H2O and HF encapsulated inside a C60 cage. Communications Chemistry, 4(1), Article 135. https://doi.org/10.1038/s42004-021-00569-0

Molecular surgery provides the opportunity to study relatively large molecules encapsulated within a fullerene cage. Here we determine the location of an H2O molecule isolated within an adsorbed buckminsterfullerene cage, and compare this to the intr... Read More about Chemical shielding of H2O and HF encapsulated inside a C60 cage.

Molecular Quantum Rings Formed from a π -Conjugated Macrocycle (2020)
Journal Article
Judd, C. J., Nizovtsev, A. S., Plougmann, R., Kondratuk, D. V., Anderson, H. L., Besley, E., & Saywell, A. (2020). Molecular Quantum Rings Formed from a π -Conjugated Macrocycle. Physical Review Letters, 125(20), Article 206803. https://doi.org/10.1103/PhysRevLett.125.206803

The electronic structure of a molecular quantum ring (stacks of 40-unit cyclic porphyrin polymers) is characterized via scanning tunneling microscopy and scanning tunneling spectroscopy. Our measurements access the energetic and spatial distribution... Read More about Molecular Quantum Rings Formed from a π -Conjugated Macrocycle.

Structural characterisation of molecular conformation and the incorporation of adatoms in an on-surface Ullmann-type reaction (2020)
Journal Article
Judd, C. J., Junqueira, F. L. Q., Haddow, S. L., Champness, N. R., Duncan, D. A., Jones, R. G., & Saywell, A. (2020). Structural characterisation of molecular conformation and the incorporation of adatoms in an on-surface Ullmann-type reaction. Communications Chemistry, 3(1), Article 166. https://doi.org/10.1038/s42004-020-00402-0

© 2020, The Author(s). 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 case for... Read More about Structural characterisation of molecular conformation and the incorporation of adatoms in an on-surface Ullmann-type reaction.

On-surface chemical reactions characterised by ultra-high resolution scanning probe microscopy (2020)
Journal Article
Sweetman, A., Champness, N. R., & Saywell, A. (2020). On-surface chemical reactions characterised by ultra-high resolution scanning probe microscopy. Chemical Society Reviews, 49(13), 4189-4202. https://doi.org/10.1039/d0cs00166j

In the last decade it has become possible to resolve the geometric structure of organic molecules with intramolecular resolution using high resolution scanning probe microscopy (SPM), and specifically using the subset of SPM known as noncontact atomi... Read More about On-surface chemical reactions characterised by ultra-high resolution scanning probe microscopy.

On-Surface Synthesis within a Porphyrin Nanoring Template (2019)
Journal Article
Judd, C. J., Kondratuk, D. V., Anderson, H. L., & Saywell, A. (2019). On-Surface Synthesis within a Porphyrin Nanoring Template. Scientific Reports, 9, https://doi.org/10.1038/s41598-019-45359-w

On-surface synthesis provides a route for the production of 1D and 2D covalently bonded polymeric structures. Such reactions are confined to the surface of a substrate and the catalytic properties of the substrate are often utilised to initiate the r... Read More about On-Surface Synthesis within a Porphyrin Nanoring Template.

An On-Surface Reaction Confined within a Porous Molecular Template (2017)
Journal Article
Judd, C. J., Champness, N. R., & Saywell, A. (2018). An On-Surface Reaction Confined within a Porous Molecular Template. Chemistry - A European Journal, 24(1), 56-61. https://doi.org/10.1002/chem.201704693

On-surface reactions based on metal-catalysed Ullmann coupling have been successfully employed to synthesise a wide variety of covalently coupled structures. Substrate chemistry and topology are both known to effect the progression of an on-surface r... Read More about An On-Surface Reaction Confined within a Porous Molecular Template.

Ullmann coupling reactions on Ag(111) and Ag(110); substrate influence on the formation of covalently coupled products and intermediate metal-organic structures Metal-Organic Structures (2017)
Journal Article
Judd, C. J., Haddow, S. L., Champness, N. R., & Saywell, A. (in press). Ullmann coupling reactions on Ag(111) and Ag(110); substrate influence on the formation of covalently coupled products and intermediate metal-organic structures Metal-Organic Structures. Scientific Reports, 7(14541), https://doi.org/10.1038/s41598-017-13315-1

On-surface reactions based on Ullmann coupling are known to proceed on coinage-metal substrates (e.g. Au, Ag, Cu), with the chemistry of the surface strongly influencing the reaction progression. In addition, the topography of the surface may be expe... Read More about Ullmann coupling reactions on Ag(111) and Ag(110); substrate influence on the formation of covalently coupled products and intermediate metal-organic structures Metal-Organic Structures.

Light-induced translation of motorized molecules on a surface (2016)
Journal Article
Saywell, A., Bakker, A., Mielke, J., Kumagai, T., Wolf, M., García-López, V., …Grill, L. (2016). Light-induced translation of motorized molecules on a surface. ACS Nano, 10(12), 10945-10952. https://doi.org/10.1021/acsnano.6b05650

Molecular machines are a key component in the vision of molecular nanotechnology and have the potential to transport molecular species and cargo on surfaces. The motion of such machines should be triggered remotely, ultimately allowing a large number... Read More about Light-induced translation of motorized molecules on a surface.