Visible-Light-Induced Phenoxyl Radical-based Metal-Organic Framework for Selective Photooxidation of Sulfides - Research portal of Justus Liebig University Giessen:

Journal article

Visible-Light-Induced Phenoxyl Radical-based Metal-Organic Framework for Selective Photooxidation of Sulfides

Authors list: Zhao, ZH; Liu, MJ; Zhou, K; Guo, LD; Shen, YJ; Lu, D; Hong, X; Bao, ZB; Yang, QW; Ren, QL; Schreiner, PR; Zhang, ZG

Publication year: 2023

Pages: 6982-6989

Journal: ACS Applied Materials & Interfaces

Volume number: 15

Issue number: 5

ISSN: 1944-8244

eISSN: 1944-8252

DOI Link: https://doi.org/10.1021/acsami.2c21304

Publisher: American Chemical Society

Abstract:
Phenoxyl radicals originating from phenols through oxidation or photoinduction are relatively stable and exhibit mild oxidative activity, which endows them with the potential for photocatalysis. Herein, a stable and recyclable metal-organic framework Zr-MOF-OH constructed of a binaphthol derivative ligand has been synthesized and functions as an efficient heterogeneous photocatalyst. Zr-MOF-OH shows fairly good catalytic activity and substrate compatibility toward the selective oxidation of sulfides to sulfoxides under visible light irradiation. Such irradiation of Zr-MOF-OH converts the phenolic hydroxyl groups of the binaphthol derivative ligand to phenoxyl radicals through excited state intramolecular proton transfer, and the excited state photocatalyst triggers the single-electron oxidation of the sulfide. No reactive oxygen species are produced in the photocatalytic process, and triplet O2 directly participates in the reaction, endowing Zr-MOF-OH with wide substrate compatibility and high selectivity, which also proposes a promising pathway for the direct activation of substrates via phenoxyl radicals.

Authors/Editors

- Uni.-Prof. Dr. Peter Richard Schreiner, PhD

Citation Styles

Harvard Citation style: Zhao, Z., Liu, M., Zhou, K., Guo, L., Shen, Y., Lu, D., et al. (2023) Visible-Light-Induced Phenoxyl Radical-based Metal-Organic Framework for Selective Photooxidation of Sulfides, ACS Applied Materials & Interfaces, 15(5), pp. 6982-6989. https://doi.org/10.1021/acsami.2c21304

APA Citation style: Zhao, Z., Liu, M., Zhou, K., Guo, L., Shen, Y., Lu, D., Hong, X., Bao, Z., Yang, Q., Ren, Q., Schreiner, P., & Zhang, Z. (2023). Visible-Light-Induced Phenoxyl Radical-based Metal-Organic Framework for Selective Photooxidation of Sulfides. ACS Applied Materials & Interfaces. 15(5), 6982-6989. https://doi.org/10.1021/acsami.2c21304