Volume 120, Issue 42 pp. 8160-8163
Zuschrift

Energetics and Mechanism of Dinitrogen Cleavage at a Mononuclear Surface Tantalum Center: A New Way of Dinitrogen Reduction

Jun Li

Jun Li

School of Chemistry and Chemical Engineering, Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Nanjing University, Jiangsu 210093 (P.R. China), Fax: (+86) 25-8368-6553

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Shuhua Li Prof. Dr.

Shuhua Li Prof. Dr.

School of Chemistry and Chemical Engineering, Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Nanjing University, Jiangsu 210093 (P.R. China), Fax: (+86) 25-8368-6553

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First published: 29 September 2008
Citations: 9

We gratefully acknowledge financial support by the National Basic Research Program (Grant No. 2004CB719901), the National Natural Science Foundation of China (Grant No. 20625309), and the Chinese Ministry of Education (Grant No. NCET-04-0450).

Graphical Abstract

Selten wichtig: B3LYP-Rechnungen ergaben, dass die ungewöhnliche side-on-Koordination von N2 an das TaIII-Zentrum in [(SiO)2TaH], der aktiven Spezies für die N2-Reduktion an einem einkernigen Oberflächen-Ta-Zentrum, entscheidend für die anschließenden Hydridübertragungen zur Spaltung von N2 ist. Geschwindigkeitsbestimmend sind der erste (im Bild ist die Potentialenergiefläche gezeigt) und dritte Hydridtransfer vom Metall auf den N2-Liganden.

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