Abstract
The absorption of light by photosensitizers has been shown to offer novel reactive pathways through electronic excited state intermediates, complementing ground-state mechanisms. Such strategies have been applied in both photocatalysis and photoredox catalysis, driven by generating reactive intermediates from their long-lived excited states. One developing area is photoinduced ligand-to-metal charge transfer (LMCT) catalysis, in which coordination of a ligand to a metal center and subsequent excitation with light results in the formation of a reactive radical and a reduced metal center. This mini review concerns the foundations and recent developments on ligand-to-metal charge transfer in transition-metal catalysis, focusing on the organic transformations made possible through this mechanism.
1 Introduction
2 Iron
3 Cobalt
4 Nickel
5 Copper
6 Future Outlook and Conclusion
Key words
ligand-to-metal charge transfer - photocatalysis - base-metal catalysis - organic synthesis - photochemistry - photoredox catalysis
