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

Title	Taming Tris(bipyridine)ruthenium(II) and Its Reactions in Water by Capture/Release with Shape-Switchable Symmetry-Matched Cyclophanes
Authors	Chaoyi Yao, Hongyu Lin, Brian Daly, Yikai Xu, Warispreet Singh, H. Q. Nimal Gunaratne, Wesley R. Browne, Steven E. J. Bell, Peter Nockemann, Meilan Huang, Paul Kavanagh, A. Prasanna de Silva
Magazine	Journal of the American Chemical Society
Date	03/11/2022
DOI	https://doi.org/10.1021/jacs.1c13028
Introduction	The study investigates electron/proton transfers in water involving polypyridineRu(II) molecules, which are controlled by capture and release mechanisms using shape-switchable hosts. These hosts can reversibly erect or collapse, impacting reaction rates by up to 120 times through complex binding. This second-sphere complexation offers control over photocatalysis, electrocatalysis, and luminescent sensing. Hosts are symmetry-matched for selective binding and exhibit submicromolar affinities. A perching complex is also identified as an intermediate state.
Quote	Chaoyi Yao, Hongyu Lin and Brian Daly et al. Taming Tris(bipyridine)ruthenium(II) and Its Reactions in Water by Capture/Release with Shape-Switchable Symmetry-Matched Cyclophanes. J. Am. Chem. Soc. 2022. Vol. 144(11):4977-4988. DOI: 10.1021/jacs.1c13028
Element	Ruthenium (Ru)
Materials	Chemical Compounds

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