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- Title
A Porous and Stable Porphyrin Metal‐Organic Framework as an Efficient Catalyst towards Visible‐Light‐Mediated Aerobic Cross‐Dehydrogenative‐Coupling Reactions.
- Authors
Liu, Jiewei; Zhang, Kun; Chen, Zhiyao; Wei, Zhang‐Wen; Zhang, Li
- Abstract
Porphyrin metal‐organic frameworks (PMOFs) are emerging as heterogeneous photocatalysts owing to the well‐designed frameworks incorporated with powerful light‐harvesting porphyrin chromophores. The porous and stable framework Ir−PCN‐224 (which is also denoted as Ir−PMOF‐1), which has been prepared by the self‐assembly of Ir(TCPP)Cl (TCPP=tetrakis(4‐carboxyphenyl)porphyrin) and ZrCl4, is reported herein to be efficient for the aerobic cross‐dehydrogenative carbon−phosphorus coupling reaction, giving rise to a high turn‐over number (TON) of up to 17200 under visible light irradiation (λ≥420 nm). Electron paramagnetic resonance (EPR) experiments disclose that the active species might be the superoxide radical anion (O2.−). Additionally, the intermediate imine cation has been detected by high‐resolution mass spectrometry (HRMS).
- Subjects
METAL-organic frameworks; METALLOPORPHYRINS; PORPHYRINS; ELECTRON paramagnetic resonance; RADICAL anions; VISIBLE spectra
- Publication
Chemistry - An Asian Journal, 2020, Vol 15, Issue 7, p1118
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201901697