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Pfeffer MG, Pehlken C, Staehle R, et al. Supramolecular activation of a molecular photocatalyst. Dalton Trans. 2014;43(35):13307-15doi: 10.1039/c4dt00761a.
Pfeffer, M. G., Pehlken, C., Staehle, R., Sorsche, D., Streb, C., & Rau, S. (2014). Supramolecular activation of a molecular photocatalyst. Dalton transactions (Cambridge, England : 2003), 43(35), 13307-15. https://doi.org/10.1039/c4dt00761a
Pfeffer, Michael G, et al. "Supramolecular activation of a molecular photocatalyst." Dalton transactions (Cambridge, England : 2003) vol. 43,35 (2014): 13307-15. doi: https://doi.org/10.1039/c4dt00761a
Pfeffer MG, Pehlken C, Staehle R, Sorsche D, Streb C, Rau S. Supramolecular activation of a molecular photocatalyst. Dalton Trans. 2014 Sep 21;43(35):13307-15. doi: 10.1039/c4dt00761a. PMID: 25060863.
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Dalton Trans. 2014 Sep 21;43(35):13307-15. doi: 10.1039/c4dt00761a.

Supramolecular activation of a molecular photocatalyst.

Dalton transactions (Cambridge, England : 2003)

Michael G Pfeffer, Christian Pehlken, Robert Staehle, Dieter Sorsche, Carsten Streb, Sven Rau

Affiliations

  1. University of Ulm, Institute of Inorganic Chemistry Materials and Catalysis, Albert-Einstein-Allee 11, 89081 Ulm, Germany. [email protected].

PMID: 25060863 DOI: 10.1039/c4dt00761a

Abstract

The effects of the planar aromatic organic molecules anthracene and pyrene on the catalytic performance of the intramolecular hydrogen evolving photocatalyst [Ru(tbbpy)2(tpphz)PdCl2](PF6)2 functioning as a photocatalytic dyad have been studied. (1)H-NMR studies on [Ru(tbbpy)2(tpphz)PdCl2](PF6)2 and [Ru(tbbpy)2(tpphz)](PF6)2 show a pronounced interaction of pyrene with the ruthenium complexes due to π-π-interactions. The solid state structure of [Ru(tbbpy)2(tpphz)PdCl2]2[Mo8O24] shows a pronounced π-π-stacking of the polyaromatic ligands. In addition, dimerization constants for the complexes and association constants between the complexes and pyrene were determined. Studies on the photocatalytic hydrogen production show a decreased induction phase and increased turn over frequencies during the initial phase of the catalysis in the presence of anthracene and pyrene utilising the catalyst [Ru(tbbpy)2(tpphz)PdCl2](PF6)2 irrespective of the nature of the polycyclic aromatic hydrocarbon.

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