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Metal–Organic Layers with Photosensitizer and Pyridine Pairs Activate Alkyl Halides for Photocatalytic Heck-Type Coupling with Olefins

https://doi.org/10.1021/jacs.4c00258

Fan, Yingjie; Blenko, Abigail L; Labalme, Steven; Lin, Wenbin (March 2024, Journal of the American Chemical Society)

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A Spirobifluorene-Based Covalent Organic Framework for Dual Photoredox and Nickel Catalysis

https://doi.org/10.1021/jacs.3c09729

Fan, Yingjie; Kang, Dong Won; Labalme, Steven; Lin, Wenbin (November 2023, Journal of the American Chemical Society)

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Molecular Engineering of Metal–Organic Layers for Sustainable Tandem and Synergistic Photocatalysis

https://doi.org/10.1021/jacs.2c12599

Fan, Yingjie; Zheng, Haifeng; Labalme, Steven; Lin, Wenbin (February 2023, Journal of the American Chemical Society)

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Site Isolation in Metal–Organic Layers Enhances Photoredox Gold Catalysis

https://doi.org/10.1021/jacs.2c03062

Zheng, Haifeng; Fan, Yingjie; Song, Yang; Chen, Justin S.; You, Eric; Labalme, Steven; Lin, Wenbin (June 2022, Journal of the American Chemical Society)

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Enhanced Energy Transfer in A π‐Conjugated Covalent Organic Framework Facilitates Excited‐State Nickel Catalysis

https://doi.org/10.1002/anie.202218908

Fan, Yingjie; Kang, Dong Won; Labalme, Steven; Li, Jinhong; Lin, Wenbin (February 2023, Angewandte Chemie International Edition)

Abstract Covalent organic frameworks (COFs) have received broad interest owing to their permanent porosity, high stability, and tunable functionalities. COFs with long‐range π‐conjugation and photosensitizing building blocks have been explored for sustainable photocatalysis. Herein, we report the first example of COF‐based energy transfer Ni catalysis. A pyrene‐based COF with sp²carbon‐conjugation was synthesized and used to coordinate Ni^IIcenters through bipyridine moieties. Under light irradiation, enhanced energy transfer in the COF facilitated the excitation of Ni centers to catalyze borylation and trifluoromethylation reactions of aryl halides. The COF showed two orders of magnitude higher efficiency in these reactions than its homogeneous control and could be recovered and reused without significant loss of catalytic activity.
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