Ansmann, Nils and Muench, Joshua and Schorpp, Marcel and Greb, Lutz (2023) Neutral and Anionic Square Planar Palladium(0) Complexes Stabilized by a Silicon Z-Type Ligand. WILEY-V C H VERLAG GMBH, WEINHEIM.
Full text not available from this repository. (Request a copy)Abstract
Anionic [Pd(0)-X]- ate complex were proposed as key intermediates in Pd-catalyzed cross-coupling for decades, but their isolation remained elusive. Herein, a chelating Lewis acidic bis(amidophenolato)silane is introduced as a strong Z-type ligand which enables the characterization of the first anionic [Pd(0)-X]- ate complex. Intriguingly, these compounds and the neutral L-Pd(0) analogs exhibit a square planar coordination that is highly unusual for a d10 metal. Theoretical methods scrutinize the interaction between the Lewis acidic Si(IV) center and the late transition metal, while reactivity studies shed light on the potential role of anionic additives in oxidative addition reactions. The first neutral and anionic square planar (sp) Pd(0) (ate) complexes are synthesized and fully characterized. Such species, which have been proposed as intermediates in Pd-catalyzed cross coupling reactions, are stabilized using a Si(IV) based Lewis acidic ambiphilic Z-type ligand, which causes a strong Pd-Si Z-type interaction as confirmed by DFT derived methods.image
| Item Type: | Other |
|---|---|
| Uncontrolled Keywords: | OXIDATIVE ADDITION; ARYL HALIDES; PD(0); IONS; HECK; MECHANISMS; REACTIVITY; CATALYSTS; Cross Coupling; Lewis Acid; Palladium; Silicon; Z-Type Ligand |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Apr 2024 09:32 |
| Last Modified: | 23 Apr 2024 09:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/60019 |
Actions (login required)
 |
View Item |
