Cooperative Activation of Small Molecules on Preorganized Dinuclear Cobalt Complexes

by Yue Wang
Doctoral thesis
Date of Examination:2024-06-28
Date of issue:2025-03-14
Advisor:Prof. Dr. Franc Meyer
Referee:Prof. Dr. Franc Meyer
Referee:Prof. Dr. Inke Siewert
Referee:Prof. Dr. Manuel Alcarazo
Persistent Address: http://dx.doi.org/10.53846/goediss-11150

 

 

Files in this item

Name:Dissertation_Yue Wang - final-ediss.pdf
Size:11.4Mb
Format:PDF

The following license files are associated with this item:

Abstract

English

The coordination chemistry of late-transition-metal dinitrogen complexes remains a topic of considerable interest. In this study, a pyrazolate-based dinucleating nacnac ligand was employed to construct a series of bimetallic cobalt complexes, including species incorporating dinitrogen moieties and other nitrogenous substrates. The cobalt coordination chemistry of the pyrazolate-derived bis(β-diketiminate) ligand was chosen, leading to the isolation and characterization of several novel dicobalt species. Upon treatment with reducing reagents, well-defined dicobalt–dinitrogen complexes were synthesized and comprehensively characterized using spectroscopic methods. Their chemical reactivity was preliminarily explored, including the synthesis and characterization of dicobalt diazene complexes in two distinct formal oxidation states. Additionally, the interconversion between dicobalt diazene and dicobalt dinitrogen species was investigated, providing insights into their electronic structures and potential reactivity.
Keywords: bimetallic complex; cobalt; nacnac; small molecule activation; nitrogen activation
 
Statistik