Reduction of Dinitrogen to Ammonia Catalyzed by Molybdenum Diamido Complexes
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Reduction of Dinitrogen to Ammonia Catalyzed by Molybdenum Diamido Complexes.pdf
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Author(s)
Wickramasinghe Weerakkodi Appuhamilage, Lasantha A
Ogawa, Takaya
Schrock, Richard Royce
Miller, Peter G
Date Issued
June 2017
Journal
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Citation
Wickramasinghe, Lasantha A. et al. “Reduction of Dinitrogen to Ammonia Catalyzed by Molybdenum Diamido Complexes.” Journal of the American Chemical Society 139, 27 (June 2017): 9132–9135 © 2017 American Chemical Society
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Author's final manuscript
Abstract
[Ar₂N₃]Mo(N)(O-t-Bu), which contains the conformationally rigid pyridine-based diamido ligand, [2,6-(ArNCH₂)₂NC₅H₃]²– (Ar = 2,6-diisopropylphenyl), can be prepared from H₂[Ar₂N₃], butyllithium, and (t-BuO)₃Mo(N). [Ar₂N₃]Mo(N)(O-t-Bu) serves as a catalyst or precursor for the catalytic reduction of molecular nitrogen to ammonia in diethyl ether between −78 and 22 °C in a batchwise manner with CoCp*₂ as the electron source and Ph₂NH₂OTf as the proton source. Up to ∼10 equiv of ammonia can be formed per Mo with a maximum efficiency in electrons of ∼43%.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1021/jacs.7b04800
