We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
A Supramolecularly Activated Radical Cation for Accelerated Catalytic Oxidation.
- Authors
Jiao, Yang; Li, Wan ‐ Lu; Xu, Jiang ‐ Fei; Wang, Guangtong; Li, Jun; Wang, Zhiqiang; Zhang, Xi
- Abstract
Tuning the activity of radicals is crucial for radical reactions and radical-based materials. Herein, we report a supramolecular strategy to accelerate the Fenton reaction through the construction of supramolecularly activated radical cations. As a proof of the concept, cucurbit[7]uril (CB[7]) was introduced, through host-guest interactions, onto each side of a derivative of 1,4-diketopyrrolo[3,4- c]pyrrole (DPP), a model dye for Fenton oxidation. The DPP radical cation, the key intermediate in the oxidation process, was activated by the electrostatically negative carbonyl groups of CB[7]. The activation induced a drastic decrease in the apparent activation energy and greatly increased the reaction rate. This facile supramolecular strategy is a promising method for promoting radical reactions. It may also open up a new route for the catalytic oxidation of organic pollutants for water purification and widen the realm of supramolecular catalysis.
- Subjects
CATALYTIC oxidation; SUPRAMOLECULAR chemistry; HABER-Weiss reaction; FREE radical reactions; PYRROLE derivatives; ACTIVATION energy; RADICAL cations
- Publication
Angewandte Chemie, 2016, Vol 128, Issue 31, p9079
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201603182