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Spin-Forbidden Excitation Enables Infrared Photoredox Catalysis
preprintsubmitted on 14.04.2020, 15:49 and posted on 24.04.2020, 05:02 by Tomislav Rovis, Benjamin D. Ravetz, Nicholas E. S. Tay, Candice Joe, Melda Sezen-Edmonds, Michael A. Schmidt, Yichen Tan, Jacob M. Janey, Martin Eastgate
We describe a new family of catalysts that undergo direct ground state singlet to excited state triplet excitation with IR light, leading to photoredox catalysis without the energy waste associated with intersystem crossing. The finding allows a mole scale reaction in batch using infrared irradiation.