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Medientyp:
E-Artikel
Titel:
Dinitrogen Activation and Functionalization with Chromium
Beteiligte:
Kendall, Alexander J.;
Mock, Michael T.
Erschienen:
Wiley, 2020
Erschienen in:European Journal of Inorganic Chemistry
Sprache:
Englisch
DOI:
10.1002/ejic.201901257
ISSN:
1434-1948;
1099-0682
Entstehung:
Anmerkungen:
Beschreibung:
<jats:p>The study of metal‐dinitrogen complexes has lent valuable insight into the nature of dinitrogen (N<jats:sub>2</jats:sub>) reduction to ammonia (NH<jats:sub>3</jats:sub>), known as “nitrogen fixation.” Even so, understanding this difficult transformation continues to be an elusive goal for chemists. The N<jats:sub>2</jats:sub>chemistry of chromium (Cr) is exceptional for its diversity, rarity, and richness of depth. Hans Karsch opined in 1977 that “<jats:italic>Almost all transition metals are known to form complexes with molecular nitrogen, but in the case of some metals ‐ notably chromium ‐ the examples are few and far between</jats:italic>.” Although that sentiment hasn't changed much in 42 years, recent advances in the field of Cr‐N<jats:sub>2</jats:sub>chemistry have begun to illuminate that elusive relationship. Herein we cover the theory and experimental basis for chromium's coordination, activation, reduction, and catalysis of N<jats:sub>2</jats:sub>to NH<jats:sub>3</jats:sub>. An emphasis will be placed on work towards understanding catalytic systems for chromium mediated dinitrogen reduction.</jats:p>