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Heterobimetallic Au(I)/Y(III) single chain nanoparticles as recyclable homogenous catalysts

Bohlen, Josina L. 1; Kulendran, Bragavie 1; Rothfuss, Hannah 2; Barner-Kowollik, Christopher 2; Roesky, Peter W. 1
1 Institut für Anorganische Chemie (AOC), Karlsruher Institut für Technologie (KIT)
2 Karlsruher Institut für Technologie (KIT)

Abstract:

Heterobimetallic single chain nanoparticles were synthesized and applied as recyclable homogenous catalysts. A terpolymer containing two orthogonal ligand moieties, phosphines and carboxylates, was obtained via nitroxide-mediated polymerization. Single chain nanoparticle (SCNP) formation is induced by selective metal complexation of Y(III) by the carboxylate functions, while Au(I) is selectively coordinated to phosphine moieties. In contrast to previous work, the two functionalities, SCNP folding and formation of a catalytic center, were distributed over two metals, which critically increases the flexibility of the system. The formation of Au(I)/Y(III)-SCNPs is evidenced by size exclusion chromatography, dynamic light scattering, nuclear magnetic resonance (1H, 31P{1H}) and infrared spectroscopy. Importantly, the activity of the Au(I)/Y(III)-SCNPs as homogenous, yet recyclable catalyst, bridging the gap between homogenous and heterogeneous catalysis, was demonstrated using the hydroamination of aminoalkynes as an example.


Verlagsausgabe §
DOI: 10.5445/IR/1000135785
Veröffentlicht am 22.07.2021
Originalveröffentlichung
DOI: 10.1039/d1py00552a
Scopus
Zitationen: 8
Dimensions
Zitationen: 9
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Anorganische Chemie (AOC)
Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1759-9954, 1759-9962
KITopen-ID: 1000135785
HGF-Programm 43.32.01 (POF IV, LK 01) Molecular Materials Basis for Optics & Photonics
Erschienen in Polymer chemistry
Verlag Royal Society of Chemistry (RSC)
Band 12
Heft 28
Seiten 4016–4021
Nachgewiesen in Dimensions
Scopus
Web of Science
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