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- Title
Chalcogen-bridged coordination polymer for the photocatalytic activation of aryl halides.
- Authors
Zeng, Le; Zhang, Tiexin; Liu, Renhai; Tian, Wenming; Wu, Kaifeng; Zhu, Jingyi; Wang, Zhonghe; He, Cheng; Feng, Jing; Guo, Xiangyang; Douka, Abdoulkader Ibro; Duan, Chunying
- Abstract
The ability to deliver electrons is vital for dye-based photocatalysts. Conventionally, the aromatic stacking-based charge-transfer complex increases photogenerated electron accessibility but decreases the energy of excited-state dyes. To circumvent this dilemma, here we show a strategy by tuning the stacking mode of dyes. By decorating naphthalene diimide with S-bearing branches, the S···S contact-linked naphthalene diimide string is created in coordination polymer, thereby enhancing electron mobility while simultaneously preserving competent excited-state reducing power. This benefit, along with in situ assembly between naphthalene diimide strings and exogenous reagent/reactant, improves the accessibility of short-lived excited states during consecutive photon excitation, resulting in greater efficiency in photoinduced electron-transfer activation of inert bonds in comparison to other coordination polymers with different dye-stacking modes. This heterogeneous approach is successfully applied in the photoreduction of inert aryl halides and the successive formation of CAr−C/S/P/B bonds with potential pharmaceutical applications. Chalcogen-bridged naphthalene diimide coordination polymers are designed and synthesised as potent excited state reductants for the activation of inert bonds in a series of aryl halides.
- Subjects
ARYL halides; COORDINATION polymers; POLYMERS; EXCITED states; ELECTRON mobility; NAPHTHALENE; IMIDES
- Publication
Nature Communications, 2023, Vol 14, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-39540-z