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- Title
Poly(heptazine imide) ligand exchange enables remarkable low catalyst loadings in heterogeneous metallaphotocatalysis.
- Authors
Xing, Liuzhuang; Yang, Qian; Zhu, Chen; Bai, Yilian; Tang, Yurong; Rueping, Magnus; Cai, Yunfei
- Abstract
The development of heterogeneous metallaphotocatalysis is of great interest for sustainable organic synthesis. The rational design and controllable preparation of well-defined (site-isolated) metal/photo bifunctional solid catalysts to meet such goal remains a critical challenge. Herein, we demonstrate the incorporation of privileged homogeneous bipyridyl-based Ni-catalysts into highly ordered and crystalline potassium poly(heptazine imide) (K-PHI). A variety of PHI-supported cationic bipyridyl-based Ni-catalysts (LnNi-PHI) have been prepared and fully characterized by various techniques including NMR, ICP-OES, XPS, HAADF-STEM and XAS. The LnNi-PHI catalysts exhibit exceptional chemical stability and recyclability in diverse C−P, C−S, C−O and C−N cross-coupling reactions. The proximity and cooperativity effects in LnNi-PHI significantly enhances the photo/Ni dual catalytic activity, thus resulting in low catalyst loadings and high turnover numbers. The development of heterogeneous metallaphotocatalysis is of great interest for sustainable organic synthesis. Herein, the authors demonstrate the incorporation of privileged homogeneous bipyridyl-based Ni-catalysts into highly ordered and crystalline potassium poly(heptazine imide) (K-PHI).
- Subjects
HETEROGENEOUS catalysts; CHEMICAL stability; CATALYTIC activity; TURNOVER frequency (Catalysis); WASTE recycling
- Publication
Nature Communications, 2023, Vol 14, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-37113-8