Reductive Small Molecule Transformations with Pyrazolate-Based Bimetallic Complexes

von Sara Ida Mozzi
Dissertation
Datum der mündl. Prüfung:2024-06-24
Erschienen:2025-01-23
Betreuer:Prof. Dr. Franc Meyer
Gutachter:Prof. Dr. Franc Meyer
Gutachter:Prof. Dr. Sven Schneider
Zum Verlinken/Zitieren: http://resolver.sub.uni-goettingen.de/purl?ediss-11858/15766

 

 

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Zusammenfassung

Englisch

The activation of small molecules (NO, O2, CO, CO2, N2, etc.) is important in a multitude of fields such as biology, medicine and industrial catalysis. Many synthetic catalysts were inspired by the active sites of metalloenzymes, where the synergy between metals can be beneficial for small molecule activation. A series of new complexes supported by a pyrazolate bridged bis-β-diketiminate ligand scaffolds were synthesized to combine the efficiency of the nacnac framework with the cooperativity of bimetallic systems for small molecule activation. The focus is initially dedicated to the activation of N2 in relation to the redox chemistry of a dinickel(II) dihydride complex and a dinickel(I) complex. The reactivity towards CO of a dinickel(II) complex which features an intramolecular Ni–C bond and agostic interactions and of a dinickel(II) μ-OH complex is subsequently investigated.
Keywords: bimetallic complex; nickel; nacnac; small molecule activation; nitrogen activation; agostic interactions; alkyl migration; CO activation; CO dehydrogenases
 
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