Hangman Salen Platforms Containing Dibenzofuran Scaffolds
- 14 November 2008
- journal article
- research article
- Published by Wiley in ChemSusChem
- Vol. 1 (11) , 941-949
- https://doi.org/10.1002/cssc.200800099
Abstract
The synthesis of salen ligands bearing two rigid dibenzofuran spacers functionalized with carboxylic acid and benzoic acid groups completes a series of “Hangman” ligands with the acid functionalities differentially extended across the molecular cleft. Stopped‐flow studies show that a high‐valent metal oxo intermediate is produced at Hangman platforms when H2O2is employed as a primary oxidant. The activity of this oxo species in promoting the disproportionation of hydrogen peroxide and olefin epoxidations is discussed in the context of the distance between the acid group and the metal center. The chemistry of the Hangman oxo complexes described here provides a roadmap for water‐splitting chemistry.Keywords
This publication has 55 references indexed in Scilit:
- Proton-Coupled Electron TransferChemical Reviews, 2007
- A ligand field chemistry of oxygen generation by the oxygen-evolving complex and synthetic active sitesPhilosophical Transactions Of The Royal Society B-Biological Sciences, 2007
- Direct Observation of a Transient Tyrosine Radical Competent for Initiating Turnover in a Photochemical Ribonucleotide ReductaseJournal of the American Chemical Society, 2007
- Powering the planet: Chemical challenges in solar energy utilizationProceedings of the National Academy of Sciences, 2006
- Spectroscopic Determination of Proton Position in the Proton-Coupled Electron Transfer Pathways of Donor−Acceptor Supramolecule AssembliesJournal of the American Chemical Society, 2006
- Proton-coupled electron transfer: the mechanistic underpinning for radical transport and catalysis in biologyPhilosophical Transactions Of The Royal Society B-Biological Sciences, 2006
- A Synthetic Superoxide Dismutase/Catalase Mimetic (EUK-134) Inhibits Membrane-Damage-Induced Activation of Mitogen-Activated Protein Kinase Pathways and Reduces p53 Accumulation in Ultraviolet B-Exposed Primary Human KeratinocytesJournal of Investigative Dermatology, 2004
- (Salen)Mn(III) Compound as a Nonpeptidyl Mimic of Catalase: DFT Study of the Metal Oxidation by a Peroxide MoleculeThe Journal of Physical Chemistry B, 2004
- Proton-Coupled O−O Activation on a Redox Platform Bearing a Hydrogen-Bonding ScaffoldJournal of the American Chemical Society, 2003
- PROTON-COUPLED ELECTRON TRANSFERAnnual Review of Physical Chemistry, 1998