Issue 39, 2023

Synthesis and characterization of a ruthenium-containing copolymer for use as a photoredox catalyst

Abstract

Herein, we report the synthesis and characterization of a PMMA-functionalized copolymer bearing a photoredox-active Ru(II) polypyridyl moiety and pyrene pendant groups. The integration of both the Ru(II) polypyridyl and pyrene pendant groups enabled a photoredox-catalyzed reaction through energy transfer. The effective energy transfer process was evidenced through the polymer's ability to serve as a reductive catalyst toward the formation of carbon–carbon bonds using C–H arylation, wherein product yields ranging from 37–71% were observed. The copolymer design also exhibited solvent-dependent size and catalyst activity, wherein the use of DMSO promoted aggregation of the pyrene groups that led to higher product yield, likely owing to achieving a more confined structure that enables more efficient energy transfer between Ru(II) and pyrene pendant units.

Graphical abstract: Synthesis and characterization of a ruthenium-containing copolymer for use as a photoredox catalyst

Supplementary files

Article information

Article type
Paper
Submitted
19 Eph 2023
Accepted
01 Sep 2023
First published
07 Sep 2023

Polym. Chem., 2023,14, 4560-4568

Author version available

Synthesis and characterization of a ruthenium-containing copolymer for use as a photoredox catalyst

S. Huss, A. R. Walsh, A. Griggs, D. A. Rodriguez-Acevedo, D. M. Arias-Rotondo and E. Elacqua, Polym. Chem., 2023, 14, 4560 DOI: 10.1039/D3PY00428G

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