Molecular Catalysts for N2 Reduction: State of the Art, Mechanism, and Challenges.

Fixation of atm. nitrogen is central for the prodn. of ammonia, which is the source of nitrogen fertilizers and is also emerging as a promising renewable fuel. While the development of efficient mol.-based artificial nitrogen fixation systems working under mild conditions is probably a Holy Grail, the catalytic redn. of N2 by transition-metal complexes is-above all-the main instrument to progress in the mechanistic understanding of N2 splitting. In this Minireview we first give an overview of mol.-based catalytic systems, including recent breakthroughs, and then we illustrate the alternative pathways for N2 redn. We mainly focus on multistep hydrogenation of N2 by sepd. proton and electron sources, with a particular attention for the possibility of proton-coupled electron transfer events. Finally, we try to identify the key factors to achieve catalytic redn. of dinitrogen by metal complexes and to enhance their efficiency. [on SciFinder(R)]

Références

Titre
Molecular Catalysts for N2 Reduction: State of the Art, Mechanism, and Challenges.
Type de publication
Article de revue
Année de publication
2017
Revue
ChemPhysChem
Volume
18
Pagination
2606–2617
ISSN
1439-4235
Soumis le 12 avril 2018