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![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Iridium-Catalyzed Twofold C-H/C-H Activation and Annulation: Access to Anti-Kasha Emission and
Tao Sun1, Jingxian Zhang1, Ju Zhang1
1Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China.
Abstract:
The first example of a multifunctional anti-Kasha emission-photosensitive-phosphorescent material has been synthesized via an efficient twofold C-H/C-H activation and annulation protocol. Both experimental data and theoretical calculations have validated the anti-Kasha emission property of phenothiazinium and phenoxazinium salts. Specifically, the anti-Kasha emission property of phenoxazinium salts enables dual-channel emission intensity ratio imaging for visualizing cellular and intercellular structures, while also endowing them with the capability to specifically target mitochondria in living cells. Furthermore, these newly developed photosensitive-phosphorescent materials have been demonstrated to act as efficient photocatalysts in C-H bond functionalization reactions. In addition, the novel phenothiazinium salts demonstrate photosensitive and phosphorescent properties in PVA (poly(vinyl alcohol)) films: upon light irradiation, they undergo a significant blue shift accompanied by ultralong room-temperature phosphorescence, making them highly promising for applications in encryption and multichannel information storage.
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