NDLI: Visible-light harvesting pyrene-based MOFs as efficient ROS generators† †Electronic supplementary information (ESI) available. CCDC 1908132. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c9sc03080h

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Visible-light harvesting pyrene-based MOFs as efficient ROS generators† †Electronic supplementary information (ESI) available. CCDC 1908132. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c9sc03080h

Content Provider	Semantic Scholar
Author	Zhang, Yingmu Pang, Jiandong Li, Jialuo Yang, Xinyu Feng, Mingbao Cai, Peiyu Zhou, H.
Copyright Year	2019
Abstract	The utilization of reactive oxygen species (ROS) in organic transformations is of great interest due to their superior oxidative abilities under mild conditions. Recently, metal-organic frameworks (MOFs) have been developed as photosensitizers to transfer molecular oxygen to ROS for photochemical synthesis. However, visible-light responsive MOFs for oxygen activation remains scarce. Now we design and synthesize two porous MOFs, namely, PCN-822(M) (M = Zr, Hf), which are constructed by a 4,5,9,10-(K-region) substituted pyrene-based ligand, 4,4',4'',4'''-((2,7-di-tert-butylpyrene-4,5,9,10-tetrayl)tetrakis(ethyne-2,1-diyl))-tetrabenzoate (BPETB4-). With the extended π-conjugated pyrene moieties isolated on the struts, the derived MOFs are highly responsive to visible light, possessing a broad-band adsorption from 225-650 nm. As a result, the MOFs can be applied as efficient ROS generators under visible-light irradiation, and the hafnium-based MOF, PCN-822(Hf), can promote the oxidation of amines to imines by activating molecular oxygen via synergistic photo-induced energy and charge transfer.
Starting Page	8455
Ending Page	8460
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1039/c9sc03080h
Alternate Webpage(s)	https://pubs.rsc.org/en/content/articlepdf/2019/sc/c9sc03080h
PubMed reference number	31803425
Alternate Webpage(s)	https://doi.org/10.1039/c9sc03080h
Journal	Medline
Volume Number	10
Journal	Chemical science
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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