Taming Tris(bipyridine)ruthenium(II) and Its Reactions in Water by Capture/Release with Shape-Switchable Symmetry-Matched Cyclophanes

Yao, Chaoyi, Lin, Hongyu, Daly, Brian, Xu, Yikai, Singh, Warispreet, Gunaratne, H. Q. Nimal, Browne, Wesley R., Bell, Steven E. J., Nockemann, Peter, Huang, Meilan, Kavanagh, Paul and de Silva, A. Prasanna (2022) Taming Tris(bipyridine)ruthenium(II) and Its Reactions in Water by Capture/Release with Shape-Switchable Symmetry-Matched Cyclophanes. Journal of the American Chemical Society, 144 (11). pp. 4977-4988. ISSN 0002-7863

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Official URL: https://doi.org/10.1021/jacs.1c13028


Electron/proton transfers in water proceeding from ground/excited states are the elementary reactions of chemistry. These reactions of an iconic class of molecules─polypyridineRu(II)─are now controlled by capturing or releasing three of them with hosts that are shape-switchable. Reversible erection or collapse of the host walls allows such switchability. Some reaction rates are suppressed by factors of up to 120 by inclusive binding of the metal complexes. This puts nanometric coordination chemistry in a box that can be open or shut as necessary. Such second-sphere complexation can allow considerable control to be exerted on photocatalysis, electrocatalysis, and luminescent sensing involving polypyridineRu(II) compounds. The capturing states of hosts are symmetry-matched to guests for selective binding and display submicromolar affinities. A perching complex, which is an intermediate state between capturing and releasing states, is also demonstrated.

Item Type: Article
Additional Information: Funding Information: The authors thank the Leverhulme Trust (RPG-2019-314) China Scholarship Council., Department of Education and Learning of Northern Ireland, Queen’s University Belfast, G. M. Yao, F. F. Huang, Y. X. Lin, Q. Zhang, and W. D. J. A. Norbert for support. This work is dedicated in memory of Errol F. H. Fernando, Ron Grigg, and P. A. de Soysa.
Uncontrolled Keywords: Macrocycles, Complexation, Aromatic compounds, Luminescence, Redox reactions, General Chemistry, Biochemistry, Catalysis, Colloid and Surface Chemistry
Subjects: C700 Molecular Biology, Biophysics and Biochemistry
F200 Materials Science
Department: Faculties > Health and Life Sciences > Applied Sciences
Depositing User: Rachel Branson
Date Deposited: 01 Mar 2023 09:19
Last Modified: 01 Mar 2023 09:30
URI: https://nrl.northumbria.ac.uk/id/eprint/51519

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