Anderson, Harry - University of Oxford - Department of Chemistry

个人简介

SUMMARY'OF'CAREER 2004–present Professor of Chemistry, University of Oxford UK RS4 Professorial Research Fellow from October 2013 1994–present Fellow of Keble College, Oxford UK Tutorial Fellow 1994–2013; Professorial Fellow from October 2013 1994–04 University Lecturer in Organic Chemistry, University of Oxford UK 1993–94 Postdoctoral Research Fellow, ETH-Zürich, Switzerland Advisor: François Diederich Topic: Synthetic approaches to new carbon allotropes 1990–93 Research Fellow, Magdalene College, Cambridge UK Topic: Conjugated porphyrin oligomers SUMMARY'OF'EDUCATION 1987–90 PhD, Chemistry, University of Cambridge UK Advisor: Jeremy K. M. Sanders Thesis title: Model Enzymes Based on Porphyrins 1983–87 BA, Chemistry, University of Oxford UK (First Class Honours) Advisor: John M. Brown Thesis title: Complexation of Rhodium to DNA Bases HONOURS & Awards 2013 ERC Advanced Investigator 2013 Alexander Todd – Hans Krebs Lectureship (RSC/GDCh) 2012 Tilden Prize (Royal Society of Chemistry) 2012 Distinguished Lecturer, Hong Kong Baptist University 2008 Merck-Karl Pfister Visiting Professor in Organic Chemistry, MIT, USA 2006 Award for Supramolecular Chemistry (Royal Society of Chemistry) 2003 Award for Materials Chemistry (Royal Society of Chemistry) 2003 Bob Hay Lecturer (Royal Society of Chemistry, Macrocyclic Chemistry) 2001 Corday-Morgan Award (Royal Society of Chemistry)

研究领域

Porphyrin Nanostructures We use molecular templates to synthesise π-conjugated nanorings consisting of 5–50 porphyrin units, as well as nanotubes and nanoballs. These are ideal systems for exploring quantum-coherent energy delocalisation and charge circulation, and they mimic the light harvesting arrays used in photosynthesis. We use EPR spectroscopy to test the electronic delocalisation in radical cations and anions of linear and cyclic porphyrin-based molecular wires. Many of these systems exhibit global aromatic ring currents, and they are the largest known aromatic macrocycles. We are also investigating the magnetic properties of molecular nanostructures containing several paramagnetic metal centres. Single-Molecule Electronic Devices We are exploring the design and synthesis of molecular wires, transistors and memory devices that exploit the unique behaviour of single molecules, such as quantum interference. Current work involves contacting molecules to electrodes made from gold and graphene. Gold STM break-junction measurements give reliable values for the molecular conductance under ambient conditions. Connecting molecules across graphene nanogaps allows the energy levels to be controlled with a gate electrode. Charge transport can be studied at cryogenic temperatures giving detailed information on the electronic structure. Switchable Dyes for Super-Resolution Microscopy We are developing switchable fluorescent dyes for tracking the movement of biomolecules in living cells. This application requires the dye to be switched photochemically between two states, one of which is fluorescent. We are exploring a variety of photochromic dyes, including spironaphthoxazines, azobenzenes and diaryl ethenes. Polyyne Rotaxanes, Catenanes and Cyclocarbons We are investigating new approaches to the synthesis of cyclocarbons — a new family of carbon allotropes. So far, cyclocarbons have only been studied in the gas phase or on surfaces at low temperatures. We are exploring catenane formation as a strategy for stabilising cyclocarbons under ambient conditions.

近期论文

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On-surface synthesis of a doubly anti-aromatic carbon allotrope: Cyclo[16]carbon Y. Gao, F. Albrecht, I. Rončević, I. Ettedgui, P. Kumar, L. M. Scriven, K. E. Christensen, S. Mishra, L. Righetti, M. Rossmannek, I. Tavernelli, H. L. Anderson and L. Gross. Nature, 2023, DOI: 10.1038/s41586-023-06566-8 Enhanced Coherence by Coupling Spins through a Delocalized π-System: Vanadyl Porphyrin Dimers I. Pozo, Z. Huang, F. Lombardi, D. Alexandropoulos, F. Kong, M. Slota, J.-R. Deng, W. Stawski, P. Horton, S. Coles, W. Myers, L. Bogani and H. L.Anderson. Chem, 2023, DOI: 10.1016/j.chempr.2023.09.013 Crystallographic evidence for global aromaticity in the di-anion and tetra-anion of a cyclophane hydrocarbon W. Stawski, Y. Zhu, Z. Wei, M. A. Petrukhina and H. L. Anderson. Chem. Sci., 2023, DOI: 10.1039/d3sc04251k How do donor and acceptor substituents change the photophysical and photochemical behavior of dithienylethenes? The search for a water-soluble visible-light photoswitch S. Qiu, A. T. Frawley, K. G. Leslie and H. L. Anderson. Chem. Sci., 2023, DOI: 10.1039/D3SC01458D Anthracene-Porphyrin Nanoribbons H. Zhu, Q. Chen, I. Rončević, K. E. Christensen and H. L. Anderson. Angew. Chem. Int. Ed., 2023, 62, e202307035 β,β-Directly Linked Porphyrin Rings: Synthesis, Photophysical Properties and Fullerene Binding Q. Chen, A. L. Thompson, K. E. Christensen, P. N. Horton, S. J. Coles and H. L. Anderson. J. Am. Chem. Soc., 2023, 145, 1859–11865 Phase-Coherent Charge Transport through a Porphyrin Nanoribbon-Graphene Junction Z. Chen, J.-R. Deng, S. Hou, X. Bian, J. L. Swett, Q. Wu, J. Baugh, G. A. D. Briggs, J. A. Mol, C. J. Lambert, H. L. Anderson and J. O. Thomas. J. Am. Chem. Soc., 2023, 145, 15265–15274 A photoswitchable solvatochromic dye for probing membrane ordering by RESOLFT super-resolution microscopy A. T. Frawley, K. G. Leslie, V. Wycisk, S. Galiani, D. Shrestha, C. Eggeling, and H. L. Anderson. ChemPhysChem, 2023, e202300125 | ChemRxiv Covalent Template-Directed Synthesis of a Spoked 18-Porphyrin Nanoring M. A. Majewski, W. Stawski, J. M. Van Raden, M. Clarke, J. Hart, J. N. O’Shea, A. Saywell and H. L. Anderson. Angew. Chem. Int. Ed., 2023, 62, e202302114 | ChemRxiv Aromaticity: Quo Vadis G. Merino, M. Solà, I. Fernandez, C. Foroutan-Nejad, P. Lazzeretti, G. Frenking, H. L. Anderson, D. Sundholm, F. Cossio, M. A. Petrukhina, J. Wu, J. Wu and A. Restrepo. Chem. Sci., 2023, DOI: 10.1039/D2SC04998H Disentangling global and local ring currents D. Bradley, M. Jirásek, H. L. Anderson and M. D. Peeks. Chem. Sci., 2023, 14, 1762-1768 Strained Porphyrin Tape-Cycloparaphenylene Hybrid Nanorings W. Stawski, J. M. Van Raden, C. W. Patrick, P. N. Horton, J. Coles and H. L. Anderson. Org. Lett., 2023, 25, 378-383 | ChemRxiv Charge-state dependent vibrational relaxation in a single-molecule junction X. Bian, Z. Chen, J. K. Sowa, C. Evangeli, B. Limburg, J. L. Swett, J. Baugh, G. A. D. Briggs, H. L. Anderson, J. A. Mol and J. O. Thomas. Phys. Rev. Lett., 2022, 129, 207702 | arXiv Bending a Photonic Wire into a Ring H. Gotfredsen, J.-R. Deng, J. Van Raden, M. Righetto, J. Hergenhahn, M. Clarke, A. Bellamy-Carter, J. Hart, J. O’Shea, T. D. W. Claridge, F. Duarte, A. Saywell, L. M. Herz and H. L. Anderson. Nat. Chem., 2022, 14, 1436–1442 | ChemRxiv Exchange-induced spin polarization in a single magnetic molecule junction T. Pei, J. O. Thomas, S. Sopp, M.-Y. Tsang, N. Dotti, J. Baugh, N. F. Chilton, S. Cardona-Serra, A. Gaita-Ariño, H. L. Anderson and L. Bogani. Nat. Commun., 2022, 13, 4506 Population and coherence dynamics in large conjugated porphyrin nanorings G. Bressan, M. Jirásek, P. Roy, H. L. Anderson, S. R. Meech and I. A. Heisler. Chem. Sci., 2022, 13, 9624-9636 | ChemRxiv How Globally Aromatic Are Six-Porphyrin Nanorings? J.-R. Deng, D. Bradley, M. Jirásek, H. L. Anderson, M. D. Peeks. Angew. Chem. Int. Ed., 2022, 61, e202201231 | ChemRxiv A Porphyrin Pentamer as a Bright Emitter for NIR OLEDs L. Tejerina, A. G. Rapidis, M. Rickhaus, M. Petri, Z. Genene, E. Wang, A. Minotto, H. L. Anderson and F. Cacialli. J. Mater. Chem. C, 2022, 10, 5929-5933 | ChemRxiv Singly and Triply Linked Magnetic Porphyrin Lanthanide Arrays J. M. Van Raden, D. I. Alexandropoulos, M. Slota, S. Sopp, T. Matsuno, A. L. Thompson, H. Isobe, H. L. Anderson and L. Bogani. J. Am. Chem. Soc., 2022, 144, 8693-8706 | ChemRxiv Polyyne [3]rotaxanes: Synthesis via dicobalt carbonyl complexes and enhanced stability C. W. Patrick, J. F. Woods, P. Gawel, C. E. Otteson, A. L. Thompson, T. D. W. Claridge, R. Jasti, H. L. Anderson. Angew. Chem. Int. Ed., 2022, 61, e202116897 | ChemRxiv A Peierls Transition in Long Polymethine Molecular Wires: Evolution of Molecular Geometry and Single-Molecule Conductance W. Xu, E. Leary, S. Sangtarash, M. Jirásek, M. T. González, K. E. Christensen, L. Abellán Vicente, N. Agraït, S. J. Higgins, R. J. Nichols, C. J. Lambert, H. L. Anderson. J. Am. Chem. Soc., 2021, 143, 20472-20481 Self-assembly of a strapped linear porphyrin oligomer on HOPG A. Bellamy-Carter, C. Roche, H. L. Anderson, A. Saywell. Sci. Rep., 2021, 11, 20388 From Macrocycles to Quantum Rings: Does Aromaticity Have a Size Limit? M. Jirásek, H. L. Anderson and M. D. Peeks. Acc. Chem. Res., 2021, 54, 3241-3251 Charge transport through extended molecular wires with strongly correlated electrons J. O. Thomas, J. K. Sowa, B. Limburg, X. Bian, C. Evangeli, J. L. Swett, S. Tewari, J. Baugh, G. C. Schatz, G. A. D. Briggs, H. L. Anderson and J. A. Mol. Chem. Sci., 2021, 12, 11121-11129 A Short History of Cyclocarbons H. L. Anderson, C. W. Patrick, L. M. Scriven and S. L. Woltering. Bull. Chem. Soc. Jpn., 2021, 94, 798-811 Experimental and Theoretical Evidence for Aromatic Stabilization Energy in Large Macrocycles M. Jirásek, M. Rickhaus, L. Tejerina and H. L. Anderson. J. Am. Chem. Soc., 2021, 143, 2403-2412 Towards efficient near-infrared fluorescent organic light-emitting diodes A. Minotto, I. Bulut, A. G. Rapidis, G. Carnicella, M. Patrini, E. Lunedei, H. L. Anderson and F. Cacialli. Light Sci. Appl., 2021, 10, 18 Cooperative assembly of H-bonded rosettes inside a porphyrin nanoring P. Motloch, P. S. Bols, H. L. Anderson and C. A. Hunter. Chem. Sci., 2021, 12, 1427-1432 Masked Alkyne Equivalents for the Synthesis of Mechanically Interlocked Polyynes P. Gawel, S. Woltering, Y. Xiong, K. Christensen and H. L. Anderson. Angew. Chem. Int. Ed., 2021, 60, 5941-5947 Long-lived charged states of single porphyrin-tape junctions under ambient conditions E. Leary, G. Kastlunger, B. Limburg, L. Rincón-García, J. Hurtado-Gallego, M. T. González, G. R. Bollinger, N. Agrait, S. J. Higgins, H. L. Anderson, R. Stadler and R. J. Nichols. Nanoscale Horiz., 2021, 6, 49-58 Molecular Quantum Rings Formed from a π-Conjugated Macrocycle C. J. Judd, A. S. Nizovtsev, R. Plougmann, D. V. Kondratuk, H. L. Anderson, E. Besley and A. Saywell. Phys. Rev. Lett., 2020, 215, 206803 Global Aromaticity in a Partially Fused 8-Porphyrin Nanoring S. M. Kopp, H. Gotfredsen, J.-R. Deng, T. D. W. Claridge and H. L. Anderson. J. Am. Chem. Soc., 2020, 142, 19393-19401 Super-resolution RESOLFT microscopy of lipid bilayers using a fluorophore-switch dyad A. T. Frawley, V. Wycisk, Y. Xiong, S. Galiani, E. Sezgin, I. Urbancic, A. Vargas Jentzsch, K. Leslie, C. Eggeling and H. L. Anderson. Chem. Sci., 2020, 11, 8955-8960 Exciton-Exciton Annihilation as a Probe of Exciton Diffusion in Large Porphyrin Nanorings G. Bressan, M. Jirásek, H. L. Anderson, I. A. Heisler and S. R. Meech. J. Phys. Chem. C, 2020, 124, 18416-18425 Synthesis of cyclo[18]carbon via debromination of C18Br6 L. M. Scriven, K. Kaiser, F. Schulz, A. J. Sterling, S. L. Woltering, P. Gawel, K. E. Christensen, H. L. Anderson and L. Gross. J. Am. Chem. Soc., 2020, 142, 12921-12924 Allosteric Cooperativity and Template-Directed Synthesis with Stacked Ligands in Porphyrin Nanorings P. S. Bols, M. Rickhaus, L. Tejerina, H. Gotfredsen, K. Eriksen, M. Jirásek and H. L. Anderson. J. Am. Chem. Soc., 2020, 142, 13219-13226 Panchromatic light funneling through the synergy in hexabenzocoronene–(metallo)porphyrin–fullerene assemblies to realize the separation of charges M. Wolf, D. Lungerich, S. Bauroth, M. Popp, B. Platzer, T. Clark, H. L. Anderson, N. Jux and D. M. Guldi. Chem. Sci., 2020, 11, 7123-7132 Photochemical Unmasking of Polyyne Rotaxanes S. L. Woltering, P. Gawel, K. E. Christensen, A. L. Thompson and H. L. Anderson. J. Am. Chem. Soc., 2020, 142, 13523–13532 A cyanine dye rotaxane porphyrin nanoring complex as a model light harvesting system J. Pruchyathamkorn, W. J. Kendrick, A. T. Frawley, A. Mattioni, F. Caycedo-Soler, S. F. Huelga, M. B. Plenio and H. L. Anderson. Angew. Chem. Int. Ed., 2020, 59, 16455-16458 Mechanisms of IR amplification in radical cation polarons W. J. Kendrick, M. Jirásek, M. D. Peeks, G. M. Greetham, I. V. Sazanovich, P. M. Donaldson, M. Towrie, A. W. Parker and H. L. Anderson. Chem. Sci., 2020, 11, 2112-2120 Global aromaticity at the nanoscale M. Rickhaus, M. Jirásek, L. Tejerina, H. Gotfredsen, M. D. Peeks, R. Haver, H. Jiang, T. D. W. Claridge, H. L. Anderson. Nat. Chem., 2020, 12, 236-241 Time-Resolved Structural Dynamics of Extended π-Electron Porphyrin Nanoring G. Bressan, M. D. Peeks, H. L. Anderson, S. R. Meech and I. Heisler. J. Phys. Chem. C, 2019, 123, 27222-27229 Understanding resonant charge transport through weakly coupled single-molecule junctions J. O. Thomas, B. Limburg, J. K. Sowa, K. Willick, J. Baugh, G. A. D. Briggs, E. M. Gauger, H. L. Anderson, J. A. Mol. Nat. Commun., 2019, 10, 4628 Spin Delocalization in the Radical Cations of Porphyrin Molecular Wires: A New Perspective on EPR Approaches G. Moise, L. Tejerina, M. Rickhaus, H. L. Anderson, C. R. Timmel. J. Phys. Chem. Lett., 2019, 10, 5708-5712 An sp-hybridized molecular carbon allotrope, cyclo[18]carbon K. Kaiser, L. M. Scriven, F. Schulz, P. Gawel, L. Gross, H. L. Anderson. Science, 2019, 365, 1299-1301 Global Aromaticity and Antiaromaticity in Porphyrin Nanoring Anions M. D. Peeks, M. Jirásek, T. D. W. Claridge and H. L. Anderson. Angew. Chem. Int. Ed., 2019, 58, 15717-15720 Charge-state assignment of nanoscale single-electron transistors from their current–voltage characteristics B. Limburg, J. O. Thomas, J. K. Sowa, K. Willick, J. Baugh, E. M. Gauger, G. A. D. Briggs, J. A. Mol and H. L. Anderson. Nanoscale, 2019, 11, 14820-14827 Ordering, flexibility and frustration in arrays of porphyrin nanorings A. Summerfield, M. Baldoni, D. V. Kondratuk, H. L. Anderson, J. P. Garrahan, E. Besley and P. H. Beton. Nat. Commun., 2019, 10, 2932 On-surface synthesis within a porphyrin nanoring template C. J. Judd, D. V. Kondratuk, H. L. Anderson and A. Saywell.Scientific Reports, 2019, 9, 11676-11688 Cross-conjugation increases the conductance of meta-connected fluorenones A. Alanazy, E. Leary, T. Kobatake, S. Sangtarash, M. T. González, H.-W. Jiang, G. Rubio Bollinger, N. Agräit, H. Sadeghi, I. Grace, S. J. Higgins, H. L. Anderson, R. J. Nichols and C. J. Lambert. Nanoscale, 2019, 11, 13720-13724 ELDOR-detected NMR beyond hyperfine couplings: a case study with Cu(ii)-porphyrin dimers N. Wili, S. Richert, B. Limburg, S. J. Clarke, H. L. Anderson, C. R. Timmel and G. Jeschke. Phys. Chem. Chem. Phys., 2019, 21, 11676-11688 Metal Atom Markers for Imaging Epitaxial Molecular Self-Assembly on Graphene by Scanning Transmission Electron Microscopy J. K. Lee, I. Bulut, M. Rickhaus, Y. Sheng, X. Li, G. G. D. Han, G. A. D. Briggs, H. L. Anderson and J. H. Warner. ACS Nano, 2019, 13, 7252-7260 Unusual Length Dependence of the Conductance in Cumulene Molecular Wires W. Xu, E. Leary, S. Hou, S. Sangtarash, M. T. González, G. Rubio-Bollinger, Q. Wu, H. Sadeghi, L. Tejerina, K. E. Christensen, N. Agraït, S. J. Higgins, C. J. Lambert, R. J. Nichols and H. L. Anderson. Angew. Chem. Int. Ed., 2019, 58, 8378-8382 Tuning the Circumference of Six-Porphyrin Nanorings R. Haver, L. Tejerina, H. Jiang, M. Rickhaus, M. Jirásek, I. Gruebner, H. J. Eggimann, L. M. Herz and H. L. Anderson. J. Am. Chem. Soc., 2019, 141, 7965-7971 Aromaticity and Antiaromaticity in the Excited States of Porphyrin Nanorings M. D. Peeks, J. Q. Gong, K. McLoughlin, T. Kobatake, R. Haver, L. M. Herz and H. L. Anderson. J. Phys. Chem. Lett., 2019, 10, 2017-2022 Atomic Scale Imaging of Reversible Ring Cyclization in Graphene Nanoconstrictions J. K. Lee, G.-D. Lee, S. Lee, E. Yoon, H. L. Anderson, G. A. D. Briggs, J. H. Warner. ACS Nano, 2019, 13, 2379-2388 Watching Bonds Move in a Large Antiaromatic Ring M. D. Peeks, H. L. Anderson. Chem, 2019, 5, 9-12 Synthesis and Properties of Porphyrin Nanotubes R. Haver, H. L. Anderson. Helv. Chim. Acta, 2018, 102, e1800211 Tailored Homo- and Hetero- Lanthanide Porphyrin Dimers: a Synthetic Strategy for Integrating Multiple Spintronic Functionalities into a Single Molecule J. J. Le Roy, J. Cremers, I. A. Thomlinson, M. Slota, W. K. Myers, P. H. Horton, S. J. Coles, H. L. Anderson, L. Bogani. Chem. Sci., 2018, 9, 8474-8481 Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors B. Limburg, J. O. Thomas, G. Holloway, H. Sadeghi, S. Sangtarash, I. C. Hou, J. Cremers, A. Narita, K. Müllen, C. J. Lambert, G. A. D. Briggs, J. A. Mol, H. L. Anderson. Adv. Funct. Mater., 2018, 28, 1803629 Band Structures of Periodic Porphyrin Nanostructures V. Posligua, A. Aziz, R. Haver, M. D. Peeks, H. L. Anderson, R. Grau-Crespo. J. Phys. Chem. C, 2018, 122, 23790-23798 Bias-driven conductance increase with length in porphyrin tapes E. Leary, B. Limburg, A. Alanazy, S. Sangtarash, I. Grace, K. Swada, L. J. Esdaile, M. Noori, M. T. González, G. Rubio-Bollinger, H. Sadeghi, A. Hodgson, N. Agraït, S. J. Higgins, C. J. Lambert, H. L. Anderson, R. J. Nichols. J. Am. Chem. Soc., 2018, 140, 12877-12883 Template-Directed Synthesis of Molecular Nanorings and Cages P. S. Bols, H. L. Anderson. Acc. Chem. Res., 2018, 51, 2083-2092 Probing the orientation of porphyrin oligomers in a liquid crystal solvent – a triplet state electron paramagnetic resonance study S. Richert, H. L. Anderson, M. D. Peeks, C. R. Timmel. Mol. Phys., 2018, 117, 2700-2708 Polyyne formation via skeletal rearrangement induced by atomic manipulation N. Pavliček, P. Gawel, D. R. Kohn, Z. Majzik, Y. Xiong, G. Meyer, H. L. Anderson and L. Gross. Nat. Chem., 2018, 10, 853-858 Distance Measurement of a Noncovalently Bound Y@C82 Pair with Double Electron Electron Resonance Spectroscopy G. Gil-Ramírez, A. Shah, H. El Mkami, K. Porfyrakis, G. A. D. Briggs, J. J. L. Morton, H. L. Anderson, J. E. Lovett. J. Am. Chem. Soc., 2018, 140, 7420-7424 Porphyrin Dyes for Nonlinear Optical Imaging of Live Cells A. Khadria, J. Fleischhauer, I. Boczarow, J. D. Wilkinson, M. M. Kohl, H. L. Anderson.iScience, 2018, 4, 153-163 Shadow Mask Templates for Site-Selective Metal Exchange in Magnesium Porphyrin Nanorings P. S. Bols, H. L. Anderson. Angew. Chem. Int. Ed., 2018, 57, 7874-7877 Push-Pull Quinoidal Porphyrins M. J. Smith, I. M. Blake, W. Clegg, H. L. Anderson. Org. Biomol. Chem., 2018, 16, 3648-3654 Template-Directed Synthesis of a Conjugated Zinc Porphyrin Nanoball J. Cremers, R. Haver, M. Rickhaus, J. Q. Gong, L. Favereau, M. D. Peeks, T. D. W. Claridge, L. M. Herz, H. L. Anderson. J. Am. Chem. Soc., 2018, 140, 5352-5355 Spironaphthoxazine switchable dyes for biological imaging Y. Xiong, A. Vargas Jentzsch, J. Osterrieth, E. Sezgin, I. V. Sazanovich, K. Reglinski, S. Galiani, A. W. Parker, C. Eggeling, H. L. Anderson. Chem. Sci., 2018, 9, 3029-3040 Synthesis of Polyynes Using Dicobalt Masking Groups D. R. Kohn, P. Gawel, Y. Xiong, K. E. Christensen, H. L. Anderson. J. Org. Chem., 2018, 83, 2077-2086 Detecting Mechanochemical Atropisomerization within an STM Break Junction E. Leary, C. Roche, H. Jiang, I. Grace, M. T. González, G. Rubio-Bollinger, C. Romero-Muñiz, Y. Xiong, Q. Al-Galiby, M. Noori, M. A. Lebedeva, K. Porfyrakis, N. Agrait, A. Hodgson, S. J. Higgins, C. J. Lambert, H. L. Anderson, R. J. Nichols. J. Am. Chem. Soc., 2018, 140, 710-718 Detection of a weak ring current in a nonaromatic porphyrin nanoring using magnetic circular dichroism P. Kowalska, M. D. Peeks, T. Roliński, H. L. Anderson and J. Waluk. Phys. Chem. Chem. Phys., 2018, 19, 32556-32565