Direct NO Reduction by a Biomimetic Iron(II) Pyrazolate MOF

A novel metal‐organic framework (MOF) containing one‐dimensional, Fe2+ chains bridged by dipyrazolate linkers and N,N‐dimethylformamide (DMF) ligands has been synthesized. The unusual chain‐type metal nodes feature accessible coordination sites on adjacent metal centers, resulting in motifs that are...

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Published inAngewandte Chemie International Edition Vol. 60; no. 39; pp. 21221 - 21225
Main Authors Cai, Zhongzheng, Tao, Wenjie, Moore, Curtis E., Zhang, Shiyu, Wade, Casey R.
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 20.09.2021
EditionInternational ed. in English
Subjects
bioinspired materials
Biomimetics
Chains
Dimethylformamide
Direct reduction plants
Heme
Iron
Metal-organic frameworks
Nitric oxide
Nitrous oxide
Reductases
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Summary:A novel metal‐organic framework (MOF) containing one‐dimensional, Fe2+ chains bridged by dipyrazolate linkers and N,N‐dimethylformamide (DMF) ligands has been synthesized. The unusual chain‐type metal nodes feature accessible coordination sites on adjacent metal centers, resulting in motifs that are reminiscent of the active sites in non‐heme diiron enzymes. The MOF facilitates direct reduction of nitric oxide (NO), producing nearly quantitative yields of nitrous oxide (N2O) and emulating the reactivity of flavodiiron nitric oxide reductases (FNORs). The ferrous form of the MOF can be regenerated via a synthetic cycle involving reduction with cobaltocene (CoCp2) followed by reaction with trimethylsilyl triflate (TMSOTf). A novel iron(II) metal–organic framework containing accessible coordination sites on adjacent metal centers facilitates the direct reduction of NO to N2O.
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202108095