These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
Damming a Molecular Energy Reservoir: Ion-regulated Electronic Energy Shuttling in a Rotaxane
preprintsubmitted on 28.02.2021, 20:13 and posted on 02.03.2021, 12:32 by Shilin Yu, Arkady Kurpryakov, James Lewis, Vicente Martí-Centelles, Stephen Goldup, Jean-Luc Pozzo, Gediminas Jonusauskas, Nathan McClenaghan
Bidirectional electronic energy shuttling is shown to occur between the molecular ring and axle components of a rotaxane. The engineered energetic and kinetic parameters give rise to long-lived, delayed luminescence. Perturbation of the quasi-isoenergetic ring and stopper chromophore excited-state energy levels upon cation binding influences the energy shuttling process, and hence luminescence read-out, representing a new potential mechanism in luminescent molecular chemosensor development