N-H Bond Formation in a Manganese(V) Nitride Yields Ammonia by Light-Driven Proton-Coupled Electron Transfer

Journal of the American Chemical Society
Dian WangRobert R Knowles

Abstract

A method for the reduction of a manganese nitride to ammonia is reported, where light-driven proton-coupled electron transfer enables the formation of weak N-H bonds. Photoreduction of (saltBu)MnVN to ammonia and a Mn(II) complex has been accomplished using 9,10-dihydroacridine and a combination of an appropriately matched photoredox catalyst and weak Brønsted acid. Acid-reductant pairs with effective bond dissociation free energies between 35 and 46 kcal/mol exhibited high efficiencies. This light-driven method may provide a blueprint for new approaches to catalytic homogeneous ammonia synthesis under ambient conditions.

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Citations

Feb 29, 2020·Chemical Science·Bastian SchluschaßSven Schneider
Jan 15, 2021·Chemical Communications : Chem Comm·Yuya Ashida, Yoshiaki Nishibayashi
May 12, 2021·Chemical Reviews·Sebastian J K ForrestSven Schneider
Aug 9, 2019·The Journal of Physical Chemistry. a·Ming WangJia-Bi Ma
Apr 28, 2020·Journal of the American Chemical Society·Sangmin KimPaul J Chirik
Nov 22, 2019·Journal of the American Chemical Society·Quinton J BruchAlexander J M Miller
Sep 27, 2020·Journal of the American Chemical Society·Peter L DunnR Morris Bullock
May 28, 2020·Chemical Reviews·Sangmin KimPaul J Chirik
Jan 7, 2021·Journal of the American Chemical Society·Robin TyburskiLeif Hammarström
Dec 21, 2021·Chemical Reviews·Rishi G AgarwalJames M Mayer
Jan 19, 2022·Journal of the American Chemical Society·Nadia G LéonardJenny Y Yang

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