Journal
CHEMICAL SOCIETY REVIEWS
Volume 39, Issue 8, Pages 2768-2779Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c003079c
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Funding
- National Institute of General Medical Sciences [GM032134]
- EPSRC [EP/H00338X/1]
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R37GM032134, R01GM032134] Funding Source: NIH RePORTER
- Engineering and Physical Sciences Research Council [EP/H00338X/1] Funding Source: researchfish
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This tutorial review describes recent progress in modeling the active sites of carboxylate-rich non-heme diiron enzymes that activate dioxygen to carry out several key reactions in Nature. The chemistry of soluble methane monooxygenase, which catalyzes the selective oxidation of methane to methanol, is of particular interest for (bio) technological applications. Novel synthetic diiron complexes that mimic structural, and, to a lesser extent, functional features of these diiron enzymes are discussed. The chemistry of the enzymes is also briefly summarized. A particular focus of this review is on models that mimic characteristics of the diiron systems that were previously not emphasized, including systems that contain (i) aqua ligands, (ii) different substrates tethered to the ligand framework, (iii) dendrimers attached to carboxylates to mimic the protein environment, (iv) two N-donors in a syn-orientation with respect to the iron-iron vector, and (v) a N-rich ligand environment capable of accessing oxygenated high-valent diiron intermediates.
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