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

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

Chem Commun (Camb). 2011 Apr 21;47(15):4451-3. doi: 10.1039/c0cc05157h. Epub 2011 Mar 9.

Authors

Jing Wang¹, Travis A White, Shamindri M Arachchige, Karen J Brewer

Affiliation

¹ Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA.

PMID: 21387071
DOI: 10.1039/c0cc05157h

Abstract

Ru,Rh,Ru complexes are photocatalysts for the reduction of H(2)O to H(2)via a Rh(I) intermediate. The herein reported Ru,Rh bimetallics undergo PEC but do not catalyze the reduction of H(2)O, 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.