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The direct formation of ammonia from molecular dinitrogen under mild reaction conditions was achieved by using new cobalt dinitrogen complexes bearing an anionic PNP‐type pincer ligand. Up to 15.9 equivalents of ammonia were produced based on the amount of catalyst together with 1.0 equivalent of hydrazine (17.9 equiv of fixed nitrogen atoms).
Cobalt‐Komplexe mit anionischen PNP‐Pinzettenliganden ermöglichen die direkte Bildung von Ammoniak aus molekularem Distickstoff unter milden Reaktionsbedingungen, wie K. Yoshizawa, Y. Nishibayashi et al. in der Zuschrift auf S. 14503 ff. beschreiben. Die Ergebnisse liefern wertvolle Erkenntnisse für die Entwicklung von Systemen zur Stickstofffixierung auf der Basis von Übergangsmetall‐Distickstoff‐Komplexen...
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