Designing Photosystems for Harvesting Photons into Electrons by Sequential Electron-Transfer Processes: Reversing the Reactivity Profiles ofα,βUnsaturated Ketones as Carbon Radical Precursor by One Electron Reductive β-Activation

摘要

Two photosystems are developed to harvest visible-light photons into electrons via sequential electron transfer processes. Photosystem-A (PS-A) consisted of DCA as light harvesting electron acceptor and Ph_3P as sacrificial electron donor, whereas photosytem-B (PS-B) employed DCA as usual electron acceptor, DMN as a primary electron donor, and ascorbic acid as a secondary and sacrificial electron donor.