A new structural motif for photoinitiated electron collection: Ru,Rh bimetallics providing insight into H2 production via photocatalysis of water reduction by Ru,Rh,Ru supramolecules

Jing Wang; Travis A. White; Shamindri M. Arachchige; Karen J. Brewer

doi:10.1039/C0CC05157H

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A new structural motif for photoinitiated electron collection: Ru,Rh bimetallics providing insight into H₂ production via photocatalysis of water reduction by Ru,Rh,Ru supramolecules†

Jing Wang,^a Travis A. White,^a Shamindri M. Arachchige^a and Karen J. Brewer*^a

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* Corresponding authors

^a Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, USA
E-mail: kbrewer@vt.edu
Fax: +1 540231-3255
Tel: +1 540231-6579

Abstract

Ru,Rh,Ru complexes are photocatalysts for the reduction of H₂O to H₂via a Rh(I) intermediate. The herein reported Ru,Rh bimetallics undergo PEC but do not catalyze the reduction of H₂O, establishing intact supramolecules are photoactive in the Ru,Rh,Ru systems. The Ru,Rh(I) photoproduct dimerizes via Rh–Rh bond formation, deactivating the Rh(I) center sterically prohibited in the Ru,Rh,Ru trimetallic systems.

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Article information

DOI: https://doi.org/10.1039/C0CC05157H
Article type: Communication
Submitted: 24 Nov 2010
Accepted: 28 Jan 2011
First published: 09 Mar 2011

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Chem. Commun., 2011,47, 4451-4453

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A new structural motif for photoinitiated electron collection: Ru,Rh bimetallics providing insight into H₂ production via photocatalysis of water reduction by Ru,Rh,Ru supramolecules

J. Wang, T. A. White, S. M. Arachchige and K. J. Brewer, Chem. Commun., 2011, 47, 4451 DOI: 10.1039/C0CC05157H

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