A low-valent dinuclear ruthenium diazadiene complex catalyzes the oxidation of dihydrogen and reversible hydrogenation of quinones
Gianetti, Thomas L.
Wörle, Michael D.
van Leest, Nicolaas P.
de Bruin, Bas
AffiliationUniv Arizona, Dept Chem & Biochem
MetadataShow full item record
PublisherROYAL SOC CHEMISTRY
CitationYang, X., Gianetti, T. L., Wörle, M. D., van Leest, N. P., de Bruin, B., & Grützmacher, H. (2019). A low-valent dinuclear ruthenium diazadiene complex catalyzes the oxidation of dihydrogen and reversible hydrogenation of quinones. Chemical Science, 10(4), 1117-1125.
RightsThis journal is © The Royal Society of Chemistry 2019. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
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AbstractThe dinuclear ruthenium complex [Ru2H(mu-H)(Me(2)dad)(dbcot)(2)] contains a 1,4-dimethyl-diazabuta-1,3-diene (Me(2)dad) as a non-innocent bridging ligand between the metal centers to give a [Ru-2(Me(2)dad)] core. In addition, each ruthenium is bound to one dibenzo[a,e]cyclooctatetraene (dbcot) ligand. This Ru dimer converts H-2 to protons and electrons. It also catalyzes reversibly under mild conditions the selective hydrogenation of vitamins K-2 and K-3 to their corresponding hydroquinone equivalents without affecting the C=C double bonds. Mechanistic studies suggest that the [Ru-2(Me(2)dad)] moiety, like hydrogenases, reacts with H-2 and releases electrons and protons stepwise.
NoteOpen access article
VersionFinal published version
SponsorsSwiss National Science Foundation; ETH Zurich; China Scholarship Council; ETH Zurich Postdoctoral Fellowship Program - ETH Zurich-Marie Curie action for people [FEL-14 15-1]