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A Chiral Ligand Assembly That Confers One-Electron O2 Reduction Activity for a Cu2+ -Selective Metallohydrogel
Xiaojuan Wang1, Chuanwan Wei1, Ji-Hu Su2
1School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, China.
Abstract:
The design of functional metallohydrogels is attractive but challenging. A rational approach is introduced for designing functional metallohydrogels using chiral ligands, a phenylalanine derivative with a pyridyl group (l/d-PF). Intriguingly, the as-prepared metallohydrogel exhibits excellent O2 binding and activating properties. Insights into the O2 binding pathway reveals the presence of a novel [(l+d)-PF-Cu3+ -O2- ] species, which can efficiently reduce ferric cytochrome c with the reactive O2- by receiving an electron from reductant ascorbic acid. This study provides helpful instructions for developing new artificial systems with specific functions through the effective combination of chiral ligands with metal ions.
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