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Medientyp:
E-Artikel
Titel:
Platinum(II)‐Crosslinked Single‐Chain Nanoparticles: An Approach towards Recyclable Homogeneous Catalysts
Beteiligte:
Knöfel, Nicolai D.;
Rothfuss, Hannah;
Willenbacher, Johannes;
Barner‐Kowollik, Christopher;
Roesky, Peter W.
Erschienen:
Wiley, 2017
Erschienen in:Angewandte Chemie International Edition
Sprache:
Englisch
DOI:
10.1002/anie.201700718
ISSN:
1433-7851;
1521-3773
Entstehung:
Anmerkungen:
Beschreibung:
<jats:title>Abstract</jats:title><jats:p>We introduce the synthesis and in‐depth characterization of platinum(II)‐crosslinked single‐chain nanoparticles (Pt<jats:sup>II</jats:sup>‐SCNPs) to demonstrate their application as a recyclable homogeneous catalyst. Specifically, a linear precursor copolymer of styrene and 4‐(diphenylphosphino)styrene was synthesized via nitroxide‐mediated polymerization. The triarylphosphine ligand moieties along the backbone allowed for the intramolecular crosslinking of single chains via the addition of [Pt(1,5‐cyclooctadiene)Cl<jats:sub>2</jats:sub>] in dilute solution. The successful formation of well‐defined Pt<jats:sup>II</jats:sup>‐SCNPs was evidenced by size exclusion chromatography, dynamic light scattering, nuclear magnetic resonance (<jats:sup>1</jats:sup>H, <jats:sup>31</jats:sup>P{<jats:sup>1</jats:sup>H}, <jats:sup>195</jats:sup>Pt), and diffusion‐ordered spectroscopy. Finally, the activity of the Pt<jats:sup>II</jats:sup>‐SCNPs as homogeneous, yet recyclable catalyst was successfully demonstrated using the example of the amination of allyl alcohol.</jats:p>