A photoredox catalysed Heck reaction via hole transfer from a Ru(II)-bis(terpyridine) complex to graphene oxide

Marta Rosenthal; Jörg K. N. Lindner; Uwe Gerstmann; Armin Meier; W. Gero Schmidt; René Wilhelm

doi:10.1039/D0RA08749A

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A photoredox catalysed Heck reaction via hole transfer from a Ru(ii)-bis(terpyridine) complex to graphene oxide†

Marta Rosenthal,^a Jörg K. N. Lindner,

^b Uwe Gerstmann,

^c Armin Meier,^d W. Gero Schmidt

^c and René Wilhelm

*^d

Author affiliations

* Corresponding authors

^a Department of Chemistry, University of Paderborn, Warburgerstr. 100, 33098 Paderborn, Germany

^b Department Physics, Experimental Physics, University of Paderborn, Warburgerstr. 100, 33098 Paderborn, Germany

^c Department of Physics, Theoretical Physics, University of Paderborn, Warburgerstr. 100, 33098 Paderborn, Germany

^d Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstr. 6, 38678 Clausthal-Zellerfeld, Germany
E-mail: rene.wilhelm@tu-clausthal.de

Abstract

The attachment of homoleptic Ru bis-terpy complexes on graphene oxide significantly improved the photocatalytic activity of the complexes. These straightforward complexes were applied as photocatalysts in a Heck reaction. Due to covalent functionalization on graphene oxide, which functions as an electron reservoir, excellent yields were obtained. DFT investigations of the charge redistribution revealed efficient hole transfer from the excited Ru unit towards the graphene oxide.

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DOI: https://doi.org/10.1039/D0RA08749A
Article type: Paper
Submitted: 14 Oct 2020
Accepted: 19 Nov 2020
First published: 25 Nov 2020
This article is Open Access

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RSC Adv., 2020,10, 42930-42937

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A photoredox catalysed Heck reaction via hole transfer from a Ru(II)-bis(terpyridine) complex to graphene oxide

M. Rosenthal, J. K. N. Lindner, U. Gerstmann, A. Meier, W. G. Schmidt and R. Wilhelm, RSC Adv., 2020, 10, 42930 DOI: 10.1039/D0RA08749A

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A photoredox catalysed Heck reaction via hole transfer from a Ru(ii)-bis(terpyridine) complex to graphene oxide†

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A photoredox catalysed Heck reaction via hole transfer from a Ru(II)-bis(terpyridine) complex to graphene oxide

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