Catalyst Luminescence Exploited as an Inherent InSitu Probe of Photoredox Catalysis
David J Hayne, Sudip Mohapatra, Joseph C Bawden, Jacqui L Adcock, Gregory J Barbante, Egan H Doeven, Catherine L Fraser, Timothy U Connell, Jonathan M White, Luke C Henderson, Paul S Francis
ChemPhotoChem | WILEY-V C H VERLAG GMBH | Published : 2019
The luminescence of commonly used photoredox catalysts offers a continuous inherent in situ probe of electron or energy transfer that can be monitored by photodetectors such as a CCD spectrometer or a digital camera. This approach was applied with complementary ex situ experiments to examine the aerobic oxidation of anthracene with tris(2,2′-bipyridine)ruthenium(II) as the catalyst. The reaction results in the precipitation of an isometrically pure syn-tetraepoxide not seen in prior studies when an organic photocatalyst was employed. Changes in the emission were observed not only upon electron/energy transfer quenching of the catalyst but also from the presence of particles (undissolved subs..View full abstract
Awarded by Australian Research Council
Awarded by Office of Naval Research Global
This work was funded by the Australian Research Council (DP160103046, DP180100094, LE1701000) and the Office of Naval Research Global (N62909-18-1-2024). JCB was supported by a Deakin University Postgraduate Research Scholarship.